BIG BLACK COCK . Usually found in african american's, found in slutty girls mouth too
I HAVE A BBC .
It means Big black cock in porn.
Example:
1. Wow, that's a BBC!
2. You are watching a BBC porn again. That's cool.
BBC means either, big black cock, big booty cheek, or big booty crack
Boy 1: Dan is such a BBC and a fricking crackhead.
Boy 2:Yeah, and gay.
In pranking or joking instances the word "BBC" Is used as "Big Black Clock"
John: Wanna see my BBC, girl?
Jane: Eww, no!
John: *Wips out a big black clock*
Jane: Oww, hahaha