Top definition
It is the unique dingleberry crust formed on one member of planet Earth. This member is called Zimbabwe Bull, or Trevor.
Breezie: "Man, Trevor you need to clean up your Pale Butt Crust you left on the Toilet!"

Trevor: "TEE HEE Did you ever wake up with dirt in your butt?"
by The Kitten Catcher January 01, 2012
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