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A vehicle once known as Cadillac, which has been transformed into a drivable abnormality, often recognized with a lifted appearance, huge wheels, and the number 22 painted on the side.
"Holy fuck. I never knew Cadillac made off road vehicles!"

"Dude, that isn't a Cadillac. That's a Niggalac."
by John Curtis September 03, 2007
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A Cadillac turned into the tackiest car on the road. Typically seen with chrome everything, big spinning rims, TVs anywhere there is room to mount something, blacked out windows, and most importantly a stereo that is louder than any person can possibly tolerate.
It's every darkies dream to drive a Niggalac and be a rapper.
by AbbieA August 27, 2005
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