Internet
ysk
What does ysk mean?
Post prefix used to flag a public service announcement — a tip, warning or fact the writer thinks more people need on their radar. Required format on r/YouShouldKnow includes a "Why YSK" justification.
"YSK that most painkillers have a max daily dose, including the chewables your nan loves."
Origin
From r/YouShouldKnow, the Reddit PSA sub launched in 2010.
Frequently asked questions
What does YSK mean?
YSK stands for 'You Should Know' — a PSA-style prefix for sharing a useful fact you might have missed.
How do you use YSK in a sentence?
"YSK: you can dispute most bank fees just by calling and asking."
Study it as flashcards or scroll it in Vocabulary Flow — saved to your collection.
