What is Hoop-D?

Today it can be any car or vehicle used as personal transportation. But it was originally used to refer to classic 70's or 80's era large American cars (impalas, new yorkers, towne cars and so on...), usually found in the ghetto and in poor condition, that has been "pimped out" with garish paint, animal print interiors, wheels too large or too small and so on. They are often roomy, comfortable worn-out gas-guzzlers.