Tertiary (late) stage syphilitic sores on the vaginal wall (i.e., cunt). The lesions are red with a necrotic and oozing center. These sores are typically the sign of a long term syphilis infection and the implication is that if you suffer from them, you are sexually promiscuous (and nasty).
That girl is so skanky, I bet she has a gumma cunt." Can also be used to as an embellished derogatory name, e.g., "she is such a gumma cunt."
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).