Top Definition
Over-kill Knock Out.
While facing Red on top of Mt. Silver in Pokemon SoulSilver, my level whatever it was Typhlosion was no match for his Pikachu. It was an OKKO.
by Pokénerdasaur August 05, 2010
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.