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2 definitions by Cambam726

 
1.
The half-step between a normal shit and diarrhea.
"I had such a nasty Mudslide yesterday."
by Cambam726 August 04, 2013
 
2.
When a large amount of jizz oozes out of a woman's vagina or ass.
There was so much coming out of there, it probably qualified as an Avalanche.
by Cambam726 August 04, 2013