Top Definition

After getting a mudslide you pull you penis out of her asshole and ejaculate. Your penis is covered in shit like a mountain, the semen gushes out from the shit much like an avalanche or a volcano, rolls down your cock and on to your balls.

After inserting my penis into sally's asshole, i realized she forgot to go to the bathroom that day and I ended up getting a mudslide, witch ended up turning into a snowy avalanche.
by Omar L. April 22, 2006

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