Doing something quickly and enjoying the rush before the consequences hit.
She grinned up at him, her face covered in the evidence of her most recent fast-bad. She was a bad little dog with a full belly.
by Krickey January 3, 2021
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A very annoying woman that her slaps and moves are more fast than lightning itself, and, damn, hers slaps hurts like hell!
Guy 1: dude, look that blond bitch, across the street!
Guy 2: oh no dude, are you blind? that's a big fat ugly b-

(DOUBLE SLAP SOUND!!!!)

Guy 1: damn!!
Guy 2: fuck, dude, what was that?!
Guy 1: dude, that's a real fast bad ass bitch!
Guy 2: jesus!!!!
by Fast Bad Ass Bitch October 29, 2008
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A term used to describe a race car driver who is either pulling away from the pack or is quickly moving through the field.
Jimmie Johnson was bad fast towards the end of the race, and he finally caught and passed Kurt Busch with two laps to go.
by steveracefan May 30, 2010
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