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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"
by secondshel January 13, 2014
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2
The word "Bye" and "Cya" slurred together to form "Bya".

Similar to heylo
Lilian: I've gotta go, Ross. :)
Ross: Alright, Bya!
Lilian: Bya!
by Lilian October 02, 2005
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5
A bais yaakov school that sucks ass. The principals can't be respected by the student body because theyre just stupid. They have dumb rules and if you have a choice DO NOT GO
girl 1: I go to bya high school

Girl 2: LEAVE LEAVE LEAVE before they kick you out
by Faigafrigga October 30, 2018
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6
It's a combination of bye and ya (which everyone knows means you or you all).
I had a good time tonight guys, I'll see ya'll tomorrow...Bya
by usrodeo4 March 18, 2009
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7
for sure, without a doubt, of course, or a very positive way of saying yea!
we were in the hookah bar, and she said "BYA"
by steve December 09, 2004
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