A derogative name for a police patrol car.
Hide in those buses here comes a shit wagon.
(n.) The physical embodiment of raw suckage. When something is so completely crappy that no other words can describe it. The complete opposite of Shit Kicker
Do you read DC comics?
Ugh, DC comics? It's the shit wagon.
Any kind of deteriorated vehicle, usually the kind that mom and dad make you drive in high school. Popular shitwagons include the Chevette, Pinto, Yugo, Festiva, etc.
"You got a car, dude?"
"Yeah, but it's a real shitwagon."
A car in piss poor condition that not even a hobo would sleep in. Usually smells like the county landfill from it's previous owners' offspring spilling soda and crapping their pants in the backseats. Called a shitwagon because of it's similarity to what a farmer hauls fertilizer in.
Jim's car is a total shitwagon.