when you have to dookie really bad, and you hold it and hold it, and your running (pun intended) into the bathroom, and you sit down, and the dookie shoots from you like a bazooka, with out a second to spare, and you think "wow, that was a dookiebazookie"
Fecal matter cured over time to form a super being capible of wiping the existance of man with one excrement of flatulence. And he is also known as 'PWND U' - wait, no.