The term BBB is an acronym standing for “Blondebad bitch“. This term refers to blonde women who are deemed as very hot/beautiful and should not act as an insult but rather a compliment
M1: Yo bro, you see that girl over there?
M2: YO BRO THAT‘S A BBB RRAHHH
M1: What? What do you mean?
M2: SHE‘S A BLONDEBAD BITCH BRO
M1: Aight bro whatever tickles your pickle