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Break-Up Bone

the act of getting it on right before a relationship ends.
-yeah man, me and ashley broke up.

-oh dude that sucks. did you manage to sneak in the B.U.B.?
B.U.B. by the M.O. crew October 19, 2007
Janelle: Ooh uh uh Crystal look at her
Crystal: omg she looks like a fuckin' B.U.B.
B.U.B. by Cuteboy97 February 10, 2019
A B.U.B. is a short and funny way of calling someone a Big Ugly Bitch
Alright B.U.B. take it easy you Ginny Horn.
B.U.B. by IMA Zeke June 16, 2020
B.U.B is an acronym for "Back up Bitch". If a woman/man is in a relationship, and they don't want their girlfriend/boyfriend to know about their side chick, this is perfect for you to say!
I have a lot of B.U.B's!
B.U.B by HowSwaeeLee January 4, 2019
B.U.B is an acronym for "Back up Bitch". If a woman/man is in a relationship, and they don't want their girlfriend/boyfriend to know about their side chick, this is perfect for you to say!
I have a lot of B.U.B's
B.U.B by HowSwaeeLee January 4, 2019
Aye bruh you heard about that one girl everyone calls meaty

Yeah bro she a B.U.B

whats that

A Big Ugly Bitch
B.U.B by Kiddflash May 24, 2019