Top definition
The act begins with two lovers each individually shitting their pants. They then remove and trade pants, quickly putting on the others' steaming shitty pants. This is followed by an extended period of dry humping.
Burt: Yo dude, I owe you a new pair of pants.
Will: Why what happened?
Burt: Last night me and that stripper I brought home played shittypants switchypants with your new jeans.
Will: Dickhead.
by German Shyster May 09, 2007
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