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"Bam!", "in your face", and "hell yeah", all at the same time. A term that self-congratulates, describes excitement, lets others know the magnificence of the celebration as well as the superiority of the user, and is used as an exclamation of those ideas.
Say "booya!" when you play a trick on someone or beat them at a game, or prove your superiority to others.

"How you like them apples, bitch!? Booya!"
by bigboybob March 24, 2005
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Can be said whenever feeling happy or excited in any situation.
My boss just gave me my paycheck, so I got out of my cube and screamed "BOO YA!"
by Squibber August 03, 2005
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a phrase said when you are victorious and want to boast to your peers.
I finally beat you, boo-ya!
by laurencarakelsi February 07, 2003
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Rob just beat Rafael in Madden, Blitz, NBA street, and every other game..... BOO YA
by Rob November 27, 2003
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