Stuff the muffin 

The act of pounding chubby with a chubby.

My boy Sheridan stayed up all night to stuff the muffin and make cream cheese

Stuff the muffin by DOB69 April 27, 2014

Buffin' the Muffin

The female act of masturbation.

Laurel is always at home, buffin' the muffin after work.

Buffin' the Muffin by Jyynx September 21, 2008

Punch the Muffin 

An ambiguous phrase used in a purely contextual manner. Amusing because it means nothing & everything at the same time; use is only limited by the user's imagination. Sometimes used to confuse the uninitiated.

Yo bro, i gotta go punch the muffin (Take a dump)
They were punching the muffin all night (Sexy time)
Tom & Joe were punching the muffin about you (Talking shit)
Punch the muffin bro! (Accompanied by the fist touch, high 5, etc...)
Way to punch the muffin dumbass (Drop the ball, screw up, etc)

Punch the Muffin by Tridelt August 6, 2007

Put it in the muffin bin

A BETTER way of saying "Have sex with that woman"

Equally so "the bin" can be defined as "Vagina", and "muffin" can be left out of the phrase.

"Dude you gotta put it in the muffin bin!"

"Mark, you gotta put it in the bin!"

Put it in the muffin bin by Al Cohaulin' October 10, 2009

Stuffin the Muffin 

Having Sex with

At the party, I was stuffin the muffin with this chick from the Southside

Stuffin the Muffin by Johnny, John December 11, 2003

Deep in the Muffin 

Deep in the Muffin -- to be highly into the action of placing some body part into the vagina (manual masterbation, cunnilingus or copulating)

Man, Danny is so sweet, I could be deep in the muffin for days with her.

Deep in the Muffin by TooSick4U February 29, 2008

double stuff the muffin 

When a girl sticks two fingers in her vagina, she is double stuffing her muffin.

Do you double stuff the muffin?

double stuff the muffin by SuperSonicX February 13, 2007