Definitions
You should know. The opener used in Reddit's r/YouShouldKnow community, where users share useful life tips, warnings and bits of practical information they think more people ought to be aware of. Functions like a friendlier, more advice-flavoured cousin of TIL.
YSK that most painkillers are far less effective if you wait until the pain is severe to take them.
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🌐About Internet & Memes slang
Viral internet speak — memes, ratios, main-character moments, and the algospeak of every platform from Twitter to Reddit to TikTok comment sections.
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Other words near "YSK" (Y)
Browse all slang words starting with Y.
Related terms
Semantically related
- TIL63%
Today I learned. The signature opener of Reddit's r/TodayILearned community, used whenever someone wants to share a fact, statistic or piece of trivia they've just discovered. The format has spread off-platform and is now a generic way of flagging "here's something I didn't know until just now".
- pro tip57%
A useful piece of advice.
- YKW57%
An internet slang and text messaging abbreviation with two common readings: You Know Who (used to reference someone without naming them, often in gossip or secret-keeping) or You Know What (used to introduce a statement obliquely). The ambiguity is usually resolved by context. Primarily used in informal digital communication among people with shared reference points. The deliberate vagueness of YKW is sometimes its entire purpose — saying ykw without specifying invites the listener to fill in the blank themselves.
- iykyk56%
"If you know, you know." An inside-joke disclaimer for references only a specific subculture, friend group, or fanbase will get. Used to signal that the speaker belongs to the group without explaining anything. Doubles as a quiet flex.
- AITA55%
Am I the asshole? The defining phrase of Reddit's r/AmItheAsshole community, where users describe an interpersonal conflict and ask strangers to judge whether they behaved badly. Verdicts come back tagged as YTA (you're the asshole), NTA (not the asshole), ESH (everyone sucks here) or NAH (no assholes here). The format has become so recognisable that "AITA?" now functions as a generic format outside Reddit too.