k.y.d.k.s
K. Y. D. K. S. means you're a kid who doesn't know squat and everyone laughs at you.
My cousin said, 'K. Y. D. K. S.!' after I tried to explain how to play Fortnite.
My teacher wrote 'K. Y. D. K. S.' on my math test after I added 2 + 2 and got 5.
My friend said, 'K. Y. D. K. S.!' when I tried to tell him how to tie his shoes.