To walk backwards haphazardly, usually resulting in an unwanted encounter or physical altercation. Derives from Marty McFly from "Back to the future", as this action usually precedes a very bad event.
That kid over there was Marty McFlying all over the store and knocked down the tower of sodas.
Ruler of Lake Titicaca. Rumored to have a bunghole that gets very angry if it does not receive toilet paper. Cornholio the Great is often seen walking around with his shirt over his head and his hands in the air, chanting songs about his power, and his bunghole.
"I am Cornholio! You do not want to face the wrath of my bunghole, for I need TP!"
Butthead: Shut up, Beavis! (uh huh huh huh)
Beavis: Um, okay. (heh heh heh heh).