Acronym for "Big Dirty Slut Bag". Used to describe an unappealing female, usually of a large frame and fairly permiscuous.
Bill: "Hey Fred, word has it that you tried to nail Mandy last night."
Fred: "Bitch, please. She's a BDSB, I wouldn't touch her."
Fred: "Bitch, please. She's a BDSB, I wouldn't touch her."
by LShunter April 21, 2006