"Big
Tits-
Dumb Bitch"; a
woman with a bountiful bussom but an empty head; usually only good for sex or punch-lines.
Stan- Did you hear what that girl said?
Melvin- No what?
Stan- She asked if the garden salad had any
dirt in it.
Melvin- Dude, what a BT-
DB!
Stan- You said it my
man.