by steve December 10, 2004
by me March 25, 2003
Acronym for "bitch you ain't shit". A man's response to a woman who has a higher opinion of herself than she should.
Guy -"So are you and your girlfriends cool?"
Girl - "Well duh - have you seen the other girls in this bar?"
Guy - "BYAS"
Girl - "Well duh - have you seen the other girls in this bar?"
Guy - "BYAS"
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