A fork of Rural Dictionary
Girl1: I hate yo ass
Girl2: bp
Girl1: what?
Girl2:bitch please
Or
It could be a text activation
Bang Piece...A person you use for sex.
"is that your girlfriend"
"naw that just this BP that i call when im drunk"
Bad Parent Syndrome - When a child acts shitty and you realize it's just because the parents never disciplined the kid.
Amy: Wow, did you see how shitty that kid behaved?
Bob: Yea, but it's not his fault - he suffers from BPS.