查看翻译. Expand Your Lexicon: Discover 5+ Similar Words for ISTFG When it comes to texting, understanding similar. A very dramatic phrase to be used only in exceptional circumstances. ISTG. ISTG has multiple definitions that can be used in various settings. . This phrase can be used to swear truthfully without having to use a more serious swear word, such as the word "God". It is typically used to show appreciation of an act of kindness by a loved one. It’s often used as an exclamation or a way to emphasize something and can be written in lower or upper case letters. This phrase is often used to express frustration or exasperation with a situation or to emphasize the sincerity of a statement. The”I” is the person who is saying it, while”F” is an expletive “F” can be an exclamation point added to the expression. It’s used to convey a deep sense of seriousness about a situation or to emphasize a point being made. How Is ISTG Used? Use Cases & Examples. ISTG is used to express frustration or annoyance at something or to show emphasis on a statement. ISTG=Make a PromiseWhat Is ISTG Meaning in SlangIstg Slang Usage (Examples and Use Cases)ISTG Meaning on TikTokISTG Meaning SnapchatFAQs on ISTG Meaning1. It can be written in both lowercase “istg” and capital “ISTG” letters. So, the next time you see someone using “istg” in a message or post, you’ll know exactly what they mean. This initialism should be avoided in professional situations or in conversing with someone who is religious. ” This abbreviation is commonly used in informal conversations on various digital. ISTG stands for “I swear to God. "Meaning; ISTG: I Swear to God: ISTG: Immigrant Ships Transcribers Guild: ISTG: Information Storage Technology Group (University of Twente; Netherlands) ISTG: Inter-Site Topology Generator: ISTG: Implicit State Transition Graph: ISTG: Integrated Systems Tech Group (Tampa, FL) ISTG: Innovative Science and Technology Group (est. For example, they might say “ISTG this homework sucks. " ISTG is used to add emphasis to a statement (usually a promise, threat, excuse or apology), or as an interjection which expresses surprise, skepticism or exasperation (similar to OMG ("Oh My God!") ). Start the day smarter. It’s a direct and sometimes blunt way of communicating that the information just shared doesn’t impress, affect, or matter to the person asking “so what. Matching search results: Since the STG meaning is often expressed fully when in a verbal conversation, the term STG should only be used in casual conversations via text or on social media. What Does ISTG Mean? In internet chatting and text messaging, the acronym “istg” actually means the phrase “I swear to God. What does ISTFG mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: ISTFG. new search. The phrase “I swear to God” has been used for hundreds of years and is basically taken from the Old English word “swear” which means an oath. ” How to understand Texting Abbreviations!! LOL and LMAO, SMH, FFS… and all the other ISTG Meaning A short video summarzing the most common. ISTFG means “I Swear To Fing God” and is typically used in informal texting to express frustration or disbelief. In summary, ISTG is an acronym widely used in informal online communication. ISTG Meaning= ThreatUse Cases & Examples. Get all the news you need in your inbox each morning. The abbreviation ISTG is widely used in text messaging and online chat with the meaning "I Swear To God. HMU meaning: hit me up. ISTG is simply an acronym that means I swear to God. Usually used after saying something ‘cool’. suggest new definition. One of the known acronyms is “ISTG” or “istg”. Meaning. IMO meaning: in my opinion. Testify. They prefer to work in traditional organisational environments, with people who take their. ABC means asking another player (or telling another player you’re ready) to make an offer, trade or perform a task in Roblox, such as roleplaying in a game. It is an expression used to emphasize the truthfulness or sincerity of a statement. ISTG can be used to express extreme seriousness, anger, or surprise, and is usually used outside of serious religious contexts. It stands for “I swear to God. Whenever a TikTok user opens their app, they are directed to their For You Page, which is a stream of videos that TikTok thinks that user will like. This. TLDR meaning: too long; didn't read. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness. It represents an empathetic or mildly shocked response to unexpected news or events. The phrase “I swear to God” has been used for hundreds of years and is basically taken from the Old English word “swear” which means an oath. It can be used as an exclamation, where users are expressing disbelief or shock. Today, I'll walk you through what ISTG means in text and other text. “ISTG” stands for “I swear to God,” and it’s commonly used in texting to express the seriousness of a situation or to assure someone that you’re not joking when. Simply put,. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. ” Definition: Istfg is an acronym for “I swear to f Up. ATP meaning: answer the phone. showing only Slang/Internet Slang definitions ( show all 7 definitions) Note: We have 1 other definition for ISTG in our Acronym Attic. Its meaning is “I Swear To God,” and it is commonly used to add sincerity or emphasis to a statement. ISTG is simply an acronym that means I swear to God. Here’s what this multifaceted slang term means and how you may. OTP meaning: one true pairing (a couple that fans prefer to all other. It is very similar to ISTFG meaning, however, there are additional letters added within the acronym. Use ISTG to show you’re not joking about something, or to express annoyance or frustration with something (or someone). It's used express emotional sincerity or to seem intimidating. You might learn your child is using this slang term by chance when a text pops up on the phone screen. Use Cases & Examples. "I swear to God" isn't just texting slang – it's used in everyday conversations to emphasize the truth at hand. What Does ISTG Mean? Introduction. It is commonly used as an exclamation or interjection. The phrase originated as a method for people to express a greater level of certainty about a statement they’re making in a conversation. Jamie Grill / Getty. It is a reference to swearing or commitment to God that is not something to take lightly as it is a risk that the person who is saying it could be punished in the event of lying. More violent then just I Swear To GodISTG is an acronym that is short for “I swear to God”. Complaint Of Patient Data C. What Does Istg Mean In Text? I swear to God ISTG means “I swear to God. STFG stands for Super Teacher Friends Group. ISTG Meaning What Does “ISTG” Stand For? If you’ve ever seen “ISTG” in a text message or on social media, you might be wondering what it means. On the internet, there’s a lot of jargon and abbreviations that often confuse even the most seasoned internet user. – What does istg Mean in Text – ISTG is a popular online abbreviation among today’s youth. I Swear to God. ISTG stands for: I Swear To God. "I swear to. ISTG Meaning= Honesty or Certainty2. What Does Istg Mean? The acronym ISTG stands for “I swear to God. Usually, students or the young generation use this acronym. What does LFG ð mean? LFG as “let’s freaking go” has since become widespread in texts among friends as a way to excite or “hype up” one another about a particular event or situation. IYKYK meaning: if you know, you know. Likewise, if you have ever seen the text code "ISTG" in texting and wondered what does ISTG mean in text. ISTFG means “I Swear To Fing God,” a phrase used to emphasize sincerity or seriousness when making a statement. Well, fret not – I’m here to help unravel the mystery for you. "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're. The”I” is the person who is saying it, while”F” is an expletive “F” can be an exclamation point added to the expression. It is commonly. Clear Of Patient Diagnosis B. Confused about slang like cap, HB, ATP, and more? We defined some popular TikTok acronyms for you. GTFO can be used to express disbelief or displeasure. It can be used to convey extreme seriousness, exasperation, or surprise, and is usually used outside of a serious religious context. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. Usually, students or the young generation use this acronym. Guarantee. ISTG stands for "I Swear to God. Swear to fucking god. More violent then just I Swear To God Learn what ISTG means in this quick and easy guide! Find out what the abbreviation stands for and how to use it in real life with this simple explanation. What does Istg mean in text message . Pushin P is a popular phrase in the Bay Area and Texas that was popularized by Atlanta rapper Gunna. Gunna explained that the ‘P’ stands for ‘player,’ although it can also stand for. Istfg Meaning Is: Istfg stands for “I Swear to Fucking God. The term is primarily used to emphasize a point you’re making and can reiterate anger or annoyance. It can be used to express emotions, surprise, or sudden kind of feelings. This phrase has a couple of variants, S2G and ISTG, and is frequently used in texting or on social media. What does B) mean? Back when emojis weren’t a thing, ‘emoticons’ were used to add more emotions to the text. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. The Meaning of ISTG in Text. ”. What does istg mean in text. Prison gang. It could be used to show how excited they are or to express. It is commonly employed in informal chats, videos, and posts to show seriousness and truthfulness. Let’s talk about the other meanings of this common abbreviation and find out what it means for different people in different contexts. STG: You can swear to god when you are frustrated or in exacerbation. By using “ISTG,” individuals can emphasize the sincerity or truthfulness of their statements, especially when sharing surprising facts or. What Does “ISTG” Stand For? “ISTG” is an acronym that stands for “I Swear to God. TikTok lingo is hard to keep up with. You can use it to show your deep frustration, attest to the truth of something, or underline your beliefs. ETA meaning: estimated time of arrival. What Does ISTG Mean In Texting? Snapchat represents a real-time multimedia communication platform that takes a step beyond traditional messaging applications. It’s similar to the term ‘ONG. It is used to emphasize a statement, a promise, or a claim, to express frustration, or to make a solemn vow. STG means different things to different people but its most common meaning is ‘Swear To God’. U Jelly has become a very popular expression, and because of its viral spreading nature, it has achieved meme status. What does ISTG mean in the text? Ans. ISTG is an acronym that stands for “I Swear To God”. Matching search results: Since the STG meaning is often expressed fully when in a verbal conversation, the term STG should only be used in casual conversations via text or on. ISTG stands for “I swear to God” in texts and on social media apps. ISTG Meaning. The “baby” part of the phrase isn’t a literal reference to a child, and. Avoid using this abbreviation in business or professional settings because it is so casual. ISTFG, I can’t believe she actually said that to me. By swearing to God, you make a sacred oath that most people respect more and therefore, are more. So, if you ever heard OMG (O My God), another popular acronym, ISTG won’t surprise you anymore. This abbreviation is commonly used in informal conversations on various digital platforms, such as text messages,. Here's what "ISTG" means and how you can use it in your next text exchange. Here's what this versatile slang term means and how you can use it in your messages and social media posts. 1 definitions of ISTG. Sub the Gamer security threat group. FYP means For You Page. I’m beyond shocked. LFG meaning: let's freaking go. ” Origin of ISTG. This should not be used in any formal setting, no matter how informal it may seem, via social media or text. Its meaning is “I Swear To God,” and it is commonly used to add sincerity or emphasis to a statement. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. This phrase is often used on social media while making public posts or in private chats. ISTG Meaning. ISTG is an acronym that is short for “I swear to God”. It is an acronym used to emphasize a belief in or commitment to the truth of a statement. Chronic Osteomyelitis Pathology Degree Embed Share an image of ISTFG » Click to view: Hearing impaired tip:. "I swear to. This expression is used to emphasize the truthfulness or seriousness of a statement. ISTFG, if you don’t stop playing your music so loudly, I’m going to lose it. In summary, ISTG is an acronym widely used in informal online communication. ”. The ISTG acronym is commonly used in response to a person who doubts something that you said. Page ContentsWhat Is ISTG Meaning1. They are there for each other on the good days and the bad days. Use ISTG to show you’re not joking about something, or to express annoyance or frustration with something (or someone). This abbreviation is commonly used in informal conversations on various digital platforms, such as text messages, social media posts, and online forums. It is often used in informal conversations, especially when expressing frustration or disbelief. This expression is most likely something you've heard in ordinary conversation. This is also very similar to. ISTG stands for “I swear to God” and is often used on Snapchat to emphasize a point or express strong emotion. It comes from the courtroom oath that traditionally said, “i swear by almighty god that the evidence i shall give shall be the truth, the whole truth, and nothing but the truth. What does STG mean?U Jelly is often used to goad someone online or in-person because you possess an article that they do not have, or because you have attained some kind of gamer achievement or minor online fame. Key Takeaways: ‘ISTG’ stands for “I Swear To God” and is commonly used in text messages and online chat. ILYSM can be used to express profound affection. Some of these words and acronyms are used on other video games and social media platforms too. ISTG is often used in informal conversations, texting, and on social media platforms. 2. I swear to fucking god. OFC meaning: of course. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. Get all the news you need in your inbox each morning. ISTG is an abbreviation commonly used in text messaging and online communication, particularly among younger generations. This is a casual phrase that many people use both online and in real life (imagine someone exclaiming “I swear to God!” when they’re frustrated or emphasizing a point). This phrase should only be used in casual conversation. new search. This phrase is used to emphasize the truth of a statement or assertion. A. ISTG means I swear to God. TLDR meaning: too long; didn't read. Read Also: What does CFS mean on Instagram? Common Uses for ISTG . " It is an internet acronym used in online chat to express frustration, surprise, or vehement assertion. When someone doubts something you said, using ISTG is a way to make a solemn oath that most people respect and are more likely to believe. Likewise, if you have ever seen the text code "ISTG" in texting and wondered what does ISTG mean in text. ”. Today, I'll walk you through what ISTG means in text. The abbreviation ISTG is widely used in text messaging and online chat with the meaning "I Swear To God. ”. ISTG meaning is “I Swear To God” and is one of the most widely used acronyms in the English language. The term comes from “shipping” within fandom culture. Also, Check What Does SNM Mean In Texting? What Does ISTG Mean and How Is It Used in Real Context? The use of shortened phrases is a popular way to communicate in text messages and online conversations. Simply put, “ISTG” stands for “ I swear to God . It can often. It can be a powerful tool for self-motivation and encouragement. What Does ISTG Mean in Texts or on Social Media? ISTG means “I swear to God” in text messages and on social media platforms like TikTok, Snapchat, Twitter, Instagram, and more. However, as with many other abbreviations meaning "I love you," it should not. Pinky promise. 1 definitions of ISTG. 4. Since this is a very casual acronym, avoid using it in. It is a commonly used slang expression used to emphasize that someone is telling the truth, or to add emphasis to a statement. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. Capitalization The slang term and abbreviation “ISTG” is typically spelled in ALL CAPS or all lowercase letters. ISTG is an acronym that stands for ‘I Swear To God. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. For example, three sample text messages using the abbreviation ISTFG could be: 1. In simple terms, “istg” stands for “I swear to God,” a popular expression used to emphasize the truthfulness or intensity of a statement. ”. What Does “ISTG” Stand For? “ISTG” is an acronym that stands for “I Swear to God. Correct: ISTG Correct: istg Incorrect: iSTG Usage Use of the abbreviation can be found in the following places. ISTFG. ABC – This doesn’t stand for anything. The abbreviation “ISTG” is a shorthand. Summary: · The added I at the beginning just refers to the person that is saying this, so ISTG means “I Swear To God”. This initialism should be avoided in professional situations or in conversing with someone who is religious. . ”. If you see someone using ISTG when texting, they’re probably emphasizing how serious they are about something. What does GM mean in text from a guy?What does df mean in texting? In the realm of texting and digital messaging, “df” usually stands for “da fuq”, a slang and casual form of saying “the fuck”. This is also very similar to. It is a stronger version of the phrase “I swear”. It may sound like a new term to some, but this one is very familiar to social media users. I just won the jackpot on the lottery ticket I bought yesterday, ISTFG! 5. It’s an acronym that people use to express the seriousness of a situation or to emphasize that they are not joking. The phrase “so what” is often used to express indifference or dismissiveness about the topic at hand. But while the slang term ISTG is harmless, other teenage slang terms could indicate that your teen is talking about risky behaviors or communicating with potentially dangerous people. It’s also like STG. This is a group of teachers that are more than friends. What Does ISTG Mean? In internet chatting and text messaging, the acronym “istg” actually means the phrase “I swear to God. Definition of ISTG in Slang/Internet Slang. One of the main uses of ISTG is in text messages or chats, either between friends or in a. B) used to be the symbol of a person wearing sunglasses with a smile on his face. In texting lingo, “istg” simply stands for “I Swear To God”. It’s a widely used acronym in text messaging and online chatting on social networking sites. ISTFG. ” Origin of ISTG. What Does ISTG Mean In Texting? ISTG is an acronym used for “I Swear To God. ISTG is an acronym that means I swear to God. The phrase was later. Use Cases & Examples. The acronym ISTG is commonly used in text. Annoyance and Assurance Another ISTG How to Use ISTG One of the hottest internet acronyms among today's teenagers is ISTG. ISTG is short for "I swear to God. In conclusion, “ISTG” is an acronym that stands for “I swear to God. It can also be used as an expression of sincerity, such as when a user is making a promise or expressing their. The expression “I swear to God” is used for centuries and originates directly from the Old English word “swear” which means swearing. ISTG is an acronym used for “I Swear To God. This abbreviation is typically used to express surprise, confusion, disbelief, or. Chronic Obstructive Pulmonary Disease D. 3. Start the day smarter. ’. Having a parental control app on your child’s phone will give you. "I swear to. I swear to f**king god (ISTFG) is an abbreviation used to express exasperation, disbelief, or agreement. As in, I swear that actually happened. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. " “ISTG” meaning over text message. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. Even though the phrase includes “God,” its meaning and uses aren’t considered religious. I swear to God. It's a close relative of the OMG (Oh My God). It is commonly used in text messaging to express the seriousness of a situation or to assure that a statement is not a joke. It is used to express frustration, anger, or disbelief. This acronym often highlights the sincerity, seriousness, or exasperation of the person using it. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. Meaning. Social media platforms: Snapchat, Instagram, Twitter, TikTok, and more. It can also be an expression of surprise or. The origin of ‘ISTG’ can be traced back to the phrase “I swear to God,” which. Every TikTok user's FYP. Definition of ISTG in Slang/Internet Slang. STFU is an acronym that means "shut the fuck up. ISTG stands for I Swear To God. ”. Going deeper into its meaning, ISTG sounds quite similar to OMG ‘Oh My God!’. Alternatively, you might say ISTG to show exasperation or frustration at something someone is telling you. ISTG Meaning= Threat Use Cases & Examples. Origin of ISTG. ISTG and OMG can also be used interchangeably often. Do you know what ISTG means in a text message? Watch this video to find out when to use ISTG in a text message and what it means!What Does “ISTG” Stand For? “ISTG” is an acronym that stands for “I Swear to God. ”. Throughout the years, a variety of terms have arisen which make it easier to communicate online. Specifically, as internet usage is increasing daily, people. Further Reading: What Does NFS Mean: Here Is All-inclusive Information You Need to Know. Overall, the acronym STG stands for “swear to God. You’ll find it all over the internet, from social media platforms like twitter and instagram to direct messages between friends. Specifically, as internet usage is increasing daily,. For example, if someone decides to message you with insulting comments about your hair, then you might reply with "STFU. The media could not be loaded, either because the server or network failed or because the format is not supported. It could be used to define the frustration or annoyance you might have towards something or somebody. ” It is often used to emphasise the truthfulness of a statement or convey the seriousness of a situation. Looking for online definition of ISTG or what ISTG stands for? ISTG is listed in the World's most authoritative dictionary of abbreviations and acronyms ISTG - What does ISTG stand for?Definition of the term. 2. ETA meaning: estimated time of arrival. ”. I Swear to God. Further Reading: What Does NFS Mean: Here Is All-inclusive Information You Need to Know. " People use it in various places on the internet to tell someone to stop talking or as a gut reaction to something offensive or mean-spirited. Usage: “Oh nice, you finally finished it! Welcome to the club B)” What does BB mean?What Does ISTG Mean in Texts or on Social Media? ISTG means “I swear to God” in text messages and on social media platforms like TikTok, Snapchat, Twitter, Instagram, and more. ISTG can be used in various contexts and can have different implications depending on the conversation. ISTFG. Here’s our round-up of the latest Roblox slang. ISTJ types like to have clear goals and realistic deadlines, and to work with factual data to solve problems and monitor progress. While some text codes (like brb, lol, and omg) are simple ones that parents can understand, it can be difficult for parents to understand many codes teenagers use nowadays. ISTG Meaning= Expression of Disbelief4. While the presence of the word “God” might indicate some religious connotation, it’s not a religious term at all. ISTG is commonly used in text messages and other social media conversations as a way to emphasize the truth or sincerity of a statement. I swear to fucking god. Essentially, ISTG is a shortcut way of saying "I. This is a common acronym that is used online, typically in text-based communication. ONB is an abbreviation commonly used in texting, which stands for “Oh No Baby”. It can be used to convey extreme seriousness, exasperation, or surprise, and is usually used outside of a serious religious. ” It is commonly used in text messaging and online chat to emphasize the truth or sincerity of a statement. Abbreviation of I Swear To Mother Fucking God. This initialism should be avoided in professional situations or in conversing with someone who is religious. IYKYK meaning: if you know, you know. '. ” Kids often use this to express frustration or exasperation. Promise. FOMO meaning: the fear of missing out. It can be used to convey sincerity, make promises, express annoyance, and more. ”. 2006)Texting with friends is the best way to use this term. The texting term ISTG, which means "I Swear To God," tells people that you really do mean what you're saying. In a different context, “sw” can also mean “someone who. So, if you ever heard OMG (O My God), another popular acronym, ISTG won’t surprise you anymore. ”. It is used to emphasize a statement, a promise, or a claim, to express frustration, or to make a solemn vow. showing only Slang/Internet Slang definitions ( show all 7 definitions) Note: We have 1 other definition for ISTG in our Acronym Attic. OFC meaning: of course. When used in text conversations, ISTG retains its original meaning of “I swear to God. What Does ISTG Mean? ISTG is an acronym that stands for “I Swear to God”. One such popular slang on platforms like Snapchat is ‘ISTG’. Similar to “I Swear To Fucking God” istfg, in that it is an escalation of the original term “I Swear To God” istg. It's not typically used in a religious context. ”. ISTG is a slang abbreviation used in online messaging and texting that means 'I swear to God. While some text codes (like brb, lol, and omg) are simple ones that parents can understand, it can be difficult for parents to understand many codes teenagers use nowadays. “I swear to God” is a common phrase that people use to show that they are telling the truth or to express their sincerity. It is very similar to ISTFG meaning, however, there are additional letters added within the acronym. When someone uses ISTG, they are essentially emphasizing. It can be used to express emotions, surprise, or sudden kind of feelings. While the presence of the word “God” might indicate some religious connotation, it’s not a religious term at all. This can be seen in phrases like: “ISTG, I’m always here for you” or “ISTG, I’ll never forget what you did for me”. ”. HMU meaning: hit. ISTG. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. " The abbreviation ILYSM is used with the meaning "I Love You So Much" as an expression of affection. There needs to be a TikTok user manual that includes a glossary because new abbreviations and slang words are constantly being churned out and I, a millennial, cannot keep up. ISTG is an acronym used in texting, which stands for “I swear to God. This phrase is typically employed to express surprise, disbelief or concern over a given situation. You will find information about the origin and other possible meanings in all types of information on this acronym, including its. It’s also like STG. Summary: · The added I at the beginning just refers to the person that is saying this, so ISTG means “I Swear To God”. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. "I swear to. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. ISTG is an internet slang initialism that conveys earnestness, annoyance, or surprise. ISTG Unveiled: Introduction to the Slang. "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're. Like, "ISTG, if I get one more. This is only for close friends. ILYSM means "I Love You So Much. For example: What does ISTG mean? ISTG is an acronym that means I swear to God. What does ISTG mean? ISTG means “I Swear To God”. What does OTP mean in texting? “OTP” means “one true pair/pairing,” according to Merriam-Webster. Person1: I'm so exhausted. This initialism should be avoided in professional situations or in conversing with someone who is religious. The ISTG definition includes a short acronym for a phrase that reads as ‘I Swear To God’. " ISTG is used to add emphasis to a statement (usually a promise, threat,. In contrast to standard text or audio messaging apps, Snapchat offers the unique ability to share fleeting live video messages that vanish as soon as they are. ISTG Meaning= Threat3. suggest new definition. ISTG Meaning. ISTFG. While it may seem like a phrase that you would use in casual conversation, it can be so much more than that.