BYOBB = Bring Your Own Brown Bag
Typically a
butterface, who as a great body that you would
fuck, but a
face so hideous you need to put a brown bag over it when your fucking her.
Guy 1: Yo man, Kristina has a bangin body, but her face is whack.
Guy
2: Dude just BYOBB.
Guy 1: Oh shit, bring your own brown bag, yeah that would
work so I don't need to see her
face while I'm gettin it in.