Definitions by not your mum

sup, yo? 

Used to initiate conversation with your close friends. Usually followed by "BITCH" or something of the likes, it is a very useable phrase.

BOB: Sup, yo? Bitch? Wat up nigga?
FRED: Call me Bitch again and i'll break ur face!

sup, yo? by not your mum October 11, 2006