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1.
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
 
2.
BYA
acroymn for bust your ass
you'd better bya cuz i'm busting mine
by dgah;ga January 08, 2008
 
3.
Bya
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
 
4.
Bya
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
 
5.
bya
bye...goodbye...i'm leaving your sorry ass
bob's wife said "biya" before she got her shit and left.
by me March 25, 2003
 
6.
bya
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