Top Definition
That nasty, dirty snow that gets stuck in the wheel wells of your car. Is usually fun to kick off unless its been below zero for days on which case you could end up with a broken toe.
I left a big car poop in the middle of the gas station parking lot.
by milf-mom August 29, 2007
the black snow/ice stuff that gathers behind your tires in winter, then falls off at random
dude... sorry but i think my car pooped in your driveway
by nursemom January 02, 2010
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