SBB/SBB Gang

SBB: Sworn By Blood

SBB Gang= A term used for a group of closest friends (brothers). Specifically willing to do bad things for each other

Girl 1: Hey, pretty boy.
Friend of hers: You're talking to an SBB/SBB Gang member.
Girl 1: SBB?
Friend of hers: Sworn By Blood. He would sacrifice you for his brothers aka the SBB Gang.