An acronym normally sent across the internet, meaning, "Kill yourself." A real classic, no way to show more maturity than this phrase.
You: "*says something*"
Person on the internet: "Kill yourself."
(how to respond) You: "no u kys fag"
1-kiss in danish
2- keep yourself safe
guy 1- hey dude kys
guy 2- no you
meaning “kill your self” is a term used when you tell someone to... kill them selves
y’all really need me to explain this???
candice: i love ybc!!
me and hot people: kys <3