Basically a modified version of the blumpy.
A
Princeton Blumpy is when someone (person A) performs oral sex on someone else (person B) who is having a bowel movement and there is someone (person C) who is getting "pooped" on (usually the face). However, half way through this act, person C will slowly move their face up to the sphincter of person B until they
eventually reach the sphincter and then "cork it"(stopping the further flow of feces by blocking the sphincter with the tongue).
However, if the person's tongue can not hold the pressure of the flow of feces and they pull away their tongue, the
fecal matter that escapes in this "explosion" is known as "The Koprek Kannon"
Steve: "So what did you, Amanda, and
Reginald do
last night?"
Roger: "Well, we tried out The
Princeton Blumpy"
Steve:"oh...did the kannon happen?"
Roger:"Nope"