a silly way that odd teenage girls use to address other odd teenage girls, usually refering to the shallow actions of shallow girls
Girl 1: That hoochie was giving me the eye earlier, I think she's jealous that I got asked out by that hawt jock.
Girl 2: Bish plz, you're not even interested in him, she just likes the drama.
A much more...kinder way of saying:
Also used as a form of chatspeak on fourms by the "1337"