Muffinfucking
The act of a male jamming any type or sized muffin into a female's vagina, then pounding it in with his penis.
"I enjoy muffinfucking the shit out of the waitress," said the pastry chef.
Muffinfucker
Lit. someone who performs sexual acts on baked goods. Used to describe somebody with an obsession with baking they wont stop talking about. Also an alternative, mother-friendly term usable in place of "motherfucker" for most purposes.
No, I don't want to hear about your latest loaf of sourdough you absolute muffinfucker.