KO means knock-out, you idiot. KO game means that somebody won because they knocked out their opponent.
That boxing match was a KO game.
by anon October 20, 2004
1 more definition
Everyone sits in a circle, and fills up a shotgun... then u spin the bottle, and whoever it lands on has to clear it! Note smoke inside has been known to be disscoloured - even green
The pussy KO, unlucky twat!!
by Anonymous March 26, 2003