The shortening of "Kill Yourself". Can be used in a variety of ways, such as genuinely telling people to do just that, or as a joke to friends.
Mean way >:( :"Kys, no one loves you bro."
Nice (sort of): "Lmaoo, kys"
The ultimate roast to completely break down somebody's anti roast system
Person 1: hey Johnny
Person 2:kys
Person 3: .......
shorter form of "kiss your sister"
-Man can I kiss you?
-No homo, kys
"kill yourself" or its a known person on discord.com! | kys#0008
you should kys.