YSK
You should know
Example
YSK that YSK stands for you should know
YSK definition by Slang.net - The Slang Dictionary
This page explains what the acronym "YSK" means. The definition, example, and related terms listed above have been manually compiled and written by the Slang.net team.
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When you're discussing facts, feelings, and anecdotes, YSK stands for "you should know." This acronym precedes information someone else thinks is worth sharing.
For example, a friend who has set you up on a blind date may text you just before the date and say "YSK, Ryan had kind of a bad day at work. But he's still excited about tonight!" YSK is also commonly used on Twitter and Reddit, especially in the r/YSK subreddit.