This is the name given to someone who you think is a Bouche dag. It can be related to the common know Douche Bag but originated from a slight slip of tough and the word stuck! Someone who is a McBouche is someone who does somethingsilly or says something grammatically incorrect. Everyone can be given this title.
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).