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Mushroom givin to one's face, made by a male, slapping his penis on someone else's body, and leaving a mark in the shape of a mushroom.
Mother: Ashley L. A.!! What is that on your face!?
Ashley: John gave me a Penile Mushroom, Mom. I was going to sleep with him, but he slapped me with his dick, so I don't want to anymore.

Mother: Well now at least you might not be as much of a whore.

Ashley: Mom!!! >:(
by GanGanGirl April 09, 2014
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