Top Definition
Black Out in Black Out.
This is when an individual consumes so much alcohol, they clearly are blacked out and will not remember anything, but, they forget what is happening in the current blackout.
Someone who is BOIBO, would be playing a game of pool and can not remember if he is stripes or solids during the game. He would have no recollection of the entire game the next day.
by Steaksizzle December 22, 2009

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