Mudrunner 

n. Any male indidvidual that wears a gym sock in place of a condom while engaging in anal sex with a partner that suffers from diarrhea.

Jerry is a Mudrunner on the weekends.

Mudrunner by Chris/ Tom October 24, 2006

Mudrusher 

An extremely derogatory term for a white woman that only dates black males.

Did you just call me a mudrusher?

Mudrusher by joelm420 July 9, 2010

Mud Runner 

When a person believes that they are still a virgin if they only have anal sex.

Hey man did you know that Jane is a mud runner?

Mud Runner by Nabik July 1, 2011

Bulgarian Mudtunnel 

Verb:The Act of Shiting into the asshole of another individual While the other individual shits at the same time.

Last night me and Jesse did the Bulgarian Mudtunnel in his house, Shit was everywhere!

Bulgarian Mudtunnel by madskillz237 February 26, 2011