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3.
one who has anal sex with another, male or female
Chad had anal sex with a nasty girl at a campground. He is now a "mud snake"
by Anonymous August 20, 2003
 
1.
An aninal indegenous to water with a lifespan of about 2 or 3 minutes. Usually dark brown, but can vary to hues to mustard yellow. Where it smells horrible, the odor can usually be alleviated by flushing the toilet.
Hey Dave, come check out my pet mud snake.
by JayBee March 26, 2005
 
2.
When you pull out of a girls ass and she shits all over your dick, your dick is now a "mud snake"
I was fucking Kelly in the ass last night and she totally gave me a mud snake
by fullofsmidt March 02, 2014