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. May 03, 2006
Get the snowy avalanchemug. Todd ejaculated on his girlfriend, pushed her down the stairs, and screamed "SNOWY WHITE AVALANCHE!"
by Xerxes93 October 30, 2011
Get the Snowy white avalanchemug.