A term used to describe a woman whose vagina is covered with pubic hair (i.e. she is unshaven downstairs).
Ben: "Yo, didja see Vicki naked lately?"
Kelton: "No, why?"
Ben: "Bitch has a MUFFIN SWEATER goin' on!"
Kelton: "Time to shave that shit, eh?"
Kelton: "No, why?"
Ben: "Bitch has a MUFFIN SWEATER goin' on!"
Kelton: "Time to shave that shit, eh?"
by Geoff AF April 30, 2010

fresh, warm muffins which are placed in a cookie jar and immediately forgotten. after two months, they are found and are moldy as shit. therefor, the muffins appear to have sweaters.
by fadedredwing May 13, 2009

Sweat·er Muf·fins
(pl. n.)
1. Slang for breasts that look good from under a sweater, usually of the perky variety.
2. A very silly synonym for a woman's chest.
(pl. n.)
1. Slang for breasts that look good from under a sweater, usually of the perky variety.
2. A very silly synonym for a woman's chest.
by Scaper-X December 14, 2005

Women's breasts that are deformed. Usually resulting in the look of a muffin. Also, used to describe a woman's breast when the woman is wearing a small sweater.
by Donkey Pong July 19, 2006
