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Winston Churchill (British Prime Minister during WWII) ended almost every phonecall with KBO.
KBO is an acronym for "Keep Buggering On"
Winston Churchill: Let's have a drink or two some time after this terrible war is over.
Franklin D. Roosevelt: That would be great fun!
Winston Churchill: Right then, KBO.
by Ulv88 December 09, 2006
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Sep 6 Word of the Day
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Damn that was a steezy ass kickflip son!
by niggaliciouszor April 29, 2007
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Knock Bitches Out.

Most likely used in game situations for pump-up purposes.
Girl 1: Let's win this game!
Girl 2: KBO?
Girl 1: Hell yeahhh.
by hi9349238432875 October 13, 2010
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The term stands for an abortion that lived but with a severe mental handicap in which he believes that he is bigger, faster and stronger than everyone. Unbeknownst to him, he is a portly balding young man that enjoys anal play from his two pet shiba inu. In extreme cases you can find one driving a women car such as a VW Jetta. If you see one in the open and he attacks simply speak quickly and use a robust vocabulary. This confuses the poor creature and renders it incapable of attacking your mind with its verbal garbage onslaught.

P.S. Fuck you K-BO
by Small Arms August 31, 2010
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