Top Definition
A girl wearing tight jeans that causes said girl's lower back fat/love handles to look as if it were a muffin top making her actual butt the base of the muffin.

Hot damn! Look at that muffin butt!
by passima December 30, 2008

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N. the disgusting, bottom part of the muffin that, it would seem, was ignored in the delegation of yummy muffin ingredients like chocolate chips, blueberries, and nuts. They are most commonly discarded or left to rot on a lunch tray.
Stina Shall: Namie, why haven't you finished your muffin?
Lyme Ninja: Pft. I never eat the Muffinbutts.
by Stina Shall and the Lyme Ninja March 20, 2009

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An affectionate pet name.
"God damn it my girlfiend wont stop calling me muffinbutt!"
by Chrisge March 17, 2008

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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A girl who while sitting down is extremely hot, but when she stands up here ass is nasty huge like the top of a muffin.
What a dissapointment that bitch is a muffin butt
by Joe January 13, 2005

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt