A "Dempy" is an ancient martial arts secret, closely guarded by the masters of the world. It involves inserting ones index finger into ones own anus before stripping completely naked and running down the street, slapping as many old people as possible. It is said that one can only attain true oneness with the Universe through the repeated use of this technique.
"My God, that guy just totally pulled off a Dempy on the old people at that bus stop!"
by Kung Fu Gravy October 29, 2008