To perform the coffee machine one must ejactulate into the vagina and The anus, trying not waste any sex mayo in the transition. When that is complete the woman must squat where she pleases and let both sources of baby gravy ooze out of both holes just like the milk and coffee from
a coffee machine hence the name.
The human coffee machine
Mate #1 - Ay lad I coffee machined Laura last night, it was mega
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).