1 definition by xN4UGHTYUTT3Rx and FORMZ69

Top Definition
A Marsmellow is when your penis is as small as a marshmellow
Wow, Nick, when I saw you changing in the locker room, I saw that you had a pretty small marshmellow.
by xN4UGHTYUTT3Rx and FORMZ69 May 02, 2009

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