slang 1 An expression developed at the University of Nebraska Kearney's Peer Health Education Office which is expressed following an experience and/or event of EPIC significance.

Origin: 1555–65; < Middle French; bourgeoisie + 2011 - Present; < Modern English Slang; booya
I punched Monday right back in the mouth, Booshawa!
by Pichie Rock June 29, 2011

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