It first appeared in the science fiction novel "The Asgard run" to refer to a christian fanatic who believed despite all evidence the earth was 6,000 years old and who became a dangerous antagonist in the novel.
That damn halohead senator is trying to force his christian views on us by making them laws.
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).