it's an acryonomn that stands for Boss Bitch Clique (pg version: Beautiful Bossy Chicks), which is a group of beautiful, intelligent and ambitious women.
It is used to describe a situation in which a woman (Bitch) has done something incomprehensible or unfair. A woman who is one day mad at you for being too sensitive and emotional and then the next minute is mad at you for being a closed book. A woman who asks you what you would like to eat and then spends the next 10mins telling you how much she hates your choice in food, you in general and everything and anything related or unrelated untill she breaks down in tears and demands a "break"
It basically describes any girl ever!
Guy 1 "Yo bromie, my girl just asked me why I don't love her body anymore, even though I spent all of last night complimenting her fine ass!"
Guy 1 "Yo bromie, my girlfreind doesn't like me looking at her toes because she thinks they are ugly and if i do, i don't get to smack that poon all night!"
Guy 1 "Yo bromie, my girl always talks about her ex like he was the fucking king! Even though his broke ass used to beat her and never let her go out?!"
BBC stands for British Born Chinese. A chinese person who is born in the UK. This person would have a British passport also English would be his/her main language.