Top definition
When you have diarhea and a friends sleeping, you stick your butt cheeks so your butthole is in contact with their nose. Then you shit out all into their nose and face, giving them a muddy surprise.
Jerry got owned when i gave him a muddy surprise last night. Of course being him, he enjoyed it.
by Johneeee November 22, 2006
Get the mug
Get a muddy surprise mug for your brother-in-law Manley.