Top Definition
The act of shitting out a car window onto another persons car. Usually at desperate times. * farting excessively indicates you may have to carmud*

WARNING : Can Be Very Messy And Disgusting!
Dude, I had to take a massive shit while in traffic, so i rolled down the window, stuck my bare ass out, and projected carmud all over the car behind me!
by alrrml March 16, 2011
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