1 definition by Anac

It's an acronym for young people (especially black but whites can use it too)who believe to be the best in the best
B best
I in
B best
B black (can be best once more for whites)
Y youths
Man: That girl has got it all, lot of talent and an incredible mind too
Woman: Of course she does. She's bibby.
by Anac June 29, 2018
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