Top Definition
When your performing anal sex with a girl, you cum inside her ass. Then she shits with the cum still with it making it look like chocolate and melted marshmallows inside the graham cracker (butt cheeks). After she has those two things mixed together in her ass you eat it, which will get thing all messy.
One night me and this girl were by the fire and she made a delicious messy smore for me.
by nitsuj2010 January 10, 2009
8 Words related to Messy Smore

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