What Does KO Mean?

An abbreviation that is widely used in texting and chat, and on social media and elsewhere on the internet, but what does KO mean in slang?

what does ko mean

Most Common KO Meaning

KO stands for Knockout.

Using KO

KO is used in boxing and martial arts when a legal strike renders an opponent unable to continue fighting. It is also used to describe someone as unconscious, fast asleep or very drunk.


You should see what happened to Zack after he was KO’d at the party.

Alternative KO Meaning


What Does KO Mean?