The act of sticking one of your balls, or ball sac, in or around your ass hole and farting. More than likely ending up with poo on your testicles.
by MuddyLuger July 12, 2010

The other night after a sweaty bluegrass jam me & Billy was at the creek & the pegging game was STRONG till that brisket game me the sharts. What started as an erotic hook-up ended as a muddy unicorn .
by Coolmedian June 12, 2018

While in the Cinncinatti Bowtie position (reverse titty-fuck with the female laying on her back), the female on the bottom lifts her head and proceeds to give the male a rimjob.
Caleb got so wasted last night he started giving Janice a Cinncinatti Bowtie then she turned it into a Muddy Sparrow.
by The-Green-Bastard May 18, 2010

Ethan - "Yo Luke, your mom gave me the maddest muddy dick last night"
Luke - "What does that mean"
Ethan - "Ya know, your moms shitted on my dick"
Luke - "What does that mean"
Ethan - "Ya know, your moms shitted on my dick"
by Mud Dick February 9, 2017

by John Bigsack October 1, 2017

A muddy picnic is same as a Wet Picnic except that the sexual activity involves anal sex and the post coital clean up involves wiping up with the picnic blanket.
Frank and Carol went to the nature trail where their plans for a quick wet picnic turned into a Muddy Picnic. The fried chicken and potato salad ended up going to waste.
by Eaton Holgoode March 3, 2015

Either a hetero or homosexual maneuver where subject is railed up the crap-hole and then mushroom- slapped across the face with the shit-covered dong in a side-to-side motion.
by DudeMcSweet July 13, 2003
