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A term used to describe someone who loves eating vagina!
Hey did you hear? That Tommy is a total smudge muffin!
by Hom2436 January 24, 2018
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When somebody takes a dump so hard it leaves marks on the toilet that can't be removed through flushing
man i just cleaned this toilet and theres already a smudgemuffin

this smudgemuffin is so big i need to take a picture
by kurtistheturtle December 10, 2009
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