Top Definition
An extremely attractive girl. Title for girlfriend.
I can't wait 'till you come to town my sweet thunder muffin.
by Diea the Doodler January 22, 2011
The fat roll around a "VERY" large waisted woman's stomach.
I was at this buffet the other night and this fat chick turned around too fast and hit me with her thunder muffin.
by Thunder Malone, Otis Adams March 13, 2012
A Thundermuffin is a term used for a case of diarrhea with no apparent end in site
The guy had a case of the thundermuffins for days
by Collegeguy12 March 30, 2009

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