2 definitions by Mr. Peebody

A dirty munchkin is when an individual is on his or her knees performing oral sex and the recipient blows their hot, sticky, wet load all over the performer therefore making them a "dirty munchkin".
*splooge*
Fred- "I just made you my Dirty Munchkin!"
by Mr. Peebody April 18, 2009
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Someone who wants you to 'do-muh-cooch' , also known as a horny female or male with a sex change.
Girl (or man with a sex change) - "Eh papi, dumacooch!"
by Mr. Peebody November 15, 2008
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