Top Definition
When a male sticks his penis in a rectum and then proceeds to slap the male/female in the face with his penis, leaving a brown spot what looks like a poopie mushroom.
I was pissed at my girlfriend so I stuck my dick in her butt and gave her a poopie mushroom.
by headshothummel February 19, 2009
5 Words related to poopie mushroom

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