What is Reddit

Over the years, Redditors have established a number of jargon terminologies that may be unfamiliar to newcomers. Here are those popular “acronyms and terms” commonly used on Reddit:

• ಠ_ಠ – “look of disapproval.” An emoticon often used to express ‘skepticism, annoyance, or judgment’ a humorous way.
• Admin – is an acronym for Administrator. Reddit ‘staff’ who handle site-wide problems.
• AFAIK – “as far as I know.”
• AITA – “am I the a*shole.” Refers to a subreddit where users ask for moral judgments on their actions.
• AMA – “ask me anything.”
• AMAA – “ask me almost anything.”
• BRB – “be right back.” Indicates a short absence.
• Bot – abbreviation for “robot,” also referred to as u/automoderator; an account/system designed to assist in managing “subreddit rules” automatically. Users can create their own bots to automate a variety of functions on Reddit, such as “posting content, responding to comments, or managing user interactions.”
• Cake day – the anniversary of the user’s initial Reddit sign-up date, often celebrated by the community.
• CCW – “comments and criticism welcome.”
• CMV – “change my view.” Used to invite a ‘discussion or debate’ to challenge a perspective.
• Copypasta – text passage that is ‘copied and pasted.’
• Custom Feed – (formerly known as “Multis” or “Multireddits”) are a means of combining subreddits into a single feed.
• DAE – “does anybody else or does anyone else.”
• Edit: – to explain what was changed, why, and “why the original poster made the alteration.”
• ELI5 – “explain it like I’m five (years old).”
• Front page – a tailored ‘home feed’ with the most popular posts from every subreddit you’ve joined.
• FTFY – “fixed that for you.”
• FWIW – “for what it’s worth.” Adds weight or context to a statement.
• FWP – “first world problems.”
• Gild/gilded – awarding a post or comment with Gold.
• IANAD – “I am not a doctor.”
• IANAL – “I am not a lawyer.”
• IMO – “in my opinion.”
• IMHO – “in my humble/honest opinion.”
• IRL – “in real life.”
• IIRC – “if I recall correctly.” Used when referencing a fact or memory.
• ITT – “in this thread.”
• Karma Farming – ‘posting or commenting’ to earn large amounts of karma.
• LPT – “life pro tip.” A practical ‘tip or advice’ to improve daily life.
• Lurker – someone who goes to Reddit but doesn’t post or leave a comment.
• Meta – refers to the concept of something being about itself. For example, a ‘meta’ comment is one that discusses another comment within the same post. Similarly, a ‘meta’ subreddit is focused on discussions about the subreddit itself, such as its “rules, content, or community behavior.”
• Mod – moderator. 
• MRW – “my reaction when.”
• MFW – “my face when.”
• NSFL – “not safe for life” (content that is extremely ‘explicit, offensive, or disturbing,’ often involving gore or graphic material).
• NSFW – “not safe for work.” Indicates that the material might be ‘too explicit or unsuitable’ for some settings, like public areas or workplaces.
• Novelty account – dedicated to a specific ‘objective, theme, or style of commenting,’ often for humor or creative expression.
• OC – “original content.”
• OOTL – “out of the loop” (describe someone who is unaware of or uninformed about recent “events, trends, or discussions”).
• OP – “original poster” (i.e. the person that created the post).
• Orangered – phrase for the website’s red envelope image that signals a ‘new’ message.
• Permalink – enduring connection to a certain comment.
• PM – private message.
• Power user – whose ‘participation and activity’ on Reddit are significantly above These users ‘are highly active, frequently contribute content, and are often well-known within the community.’
• Repost – indicates that this para/thing has been submitted before.
• Reddit Hug of Death – a website is down because of excessive traffic from Reddit.
• SFW – “safe for work.”
• Sauce – “source of information.”
• [Serious] – “serious responses only,” commonly used in ‘r/askreddit’ or similar subreddits to signal that replies should be “thoughtful, on-topic, and refrain from jokes or irrelevant comments.”
• SMH – “shake/shaking my head.” Used to express “disbelief, disappointment, or frustration.”
• Thread – often refers to a series of “comments or responses” connected to a specific post. It can also be used as a synonym for a post itself, particularly when discussing the ongoing discussion or replies within it.
• TIFU – “today I f*cked up.” Used to inform about mistakes or “embarrassing situations” that happened recently.
• TIL – “today I learned.”
• TL;DR – “too long, didn’t read.” A summary of a long post or comment.
• Top of (r/)all – refers to a post that gains significant popularity and gets featured on “r/all” (which is the front page of Reddit).
• X-Post – or “cross post” is a repost of content that has already been posted in another community.