When you dont fully wipe your butt and you sit down. The poo must harden in the shape of a pie crust in and around your butthole. Once you stand up and release the contact between your pie and the crust, the smell unleashes causing widespread riots and pandemonium around the world.
The kid Michael had some Mikey D Pie Crust at lollapolooza 2010, 2011 and probably will at 2012
by BrunoPieCrust August 10, 2011