When a man or woman gets penetrated in their butt so much that there booty hole is swelling to a shape of a muffin.
Girl 1 -Johnny and i do anal so much I have a PINK MUFFIN now.
Girl 2 - Noice.
The American Muffin is a small ring of fried cake of sweetened leavened dough.
I would like a doughnut please. Oh, you mean an American muffin.
The act of shitting in one's hand then inserting the feces into your partner's butt while screaming "Steamy Muffin!"
Hey Jane have you had any steamy muffins lately?
Someone with a muffin tuck who has aids
I cant go to the store without seeing an aids muffin
It's when one person does the butter churner sex position but instead the second person eats out there booty and/or pussy.
Babe can you muffin bite me tonight?
When your hitting your grandmother or someone's grandmother from behind and you bust your load on her ass making it look like a buttery muffin.
Forest went on a walk to Lieutenant Dan's grandmother's house looking to pick up a homemade Cheryl pie but ended up getting grandma Dan a grand muffin on her ass.