Callouses formed on the buttcheeks of a person usually as a result of sitting on a hard chair for an extended period of time. Common situations include your math review class after school which seems to drag on into oblivion, sitting on a folding metal chair at home while on your computer for several hours a day, or those long dinner parties with hard wooden chairs that you only go to because your wife begged you to.
Ex. 1: After staying after for math review for an entire hour, Jeff went home and played World of Warcraft until dinner time, when he was forced to sit at the table until all of his green beans were gone. Jeff has ass callouses.
Ex. 2: Marty plays Oblivion all day. He has ass callouses as a result.
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).
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi