1 definition by RichoFromRezza

Top Definition
When you pull your penis out and womans anal cavity and there are traces of fecal matter surround the tip of your manhood.
A: Man, i tottaly got a mud mushroom last nite while banging your sister!

B: Clean that mud mushroom of yours!
by RichoFromRezza November 01, 2008

Mug icon
Buy a Mud Mushroom mug!