DAB is an acronym for
drunk ass bitch. It is usually used to refer to a woman who drinks
excessive amounts of alcohol, and proceedingly acts trashy,
obnoxious, bitchy, or simply idiotic.
Oh look, Tracy just did 10 shots of Jose Cuervo, and now she's dancing
on the table in only her
underwear and telling
everyone that she has a really bad case of crabs... such a dab.