The act of pounding chubby with a chubby.
My boy Sheridan stayed up all night to stuff the muffin and make cream cheese
by DOB69 March 20, 2014
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When a girl sticks two fingers in her vagina, she is double stuffing her muffin.
Do you double stuff the muffin?
by SuperSonicX February 12, 2007
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Someone who can pack on the pounds but still look like a stud.
Dude, even though you eat McDonald's every day, your still a stud. What a stuff muffin.
by Keepnitreal July 12, 2015
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