It means "Kill Your Self".
Edgy 12 year olds that have no parents that watch what they do online use this term because they think they are everything.
a word that means โkill yourselfโ (dont actually do it ๐)
so uh its a death threat.
i recommend not using it
Fork: how about yo go kys!
Spoon: no
Fork: oh
man: hey why did you say that ab me man kys (kizzy yo shit) mind your business
When you feel an urge to tell another idiot to kill themselves.
Person 1: Someone keeps accusing me of bodyshaming on Twitter.
Person 2: Well just message them "Kys" and your problem will be gone.
1: Alright. "Kys SINVIA."
2: Attaboy.