A membership organization in which to belong you must have taken a dump thought to be a clean swiper (little toilet paper used) and found upon said swipe a muddy mess with doody (feces) all over the paper even under your fingernail. Once you experience this you are officially, like or not, a member of the Muddy Doody Society (MDS)
Man #1: Hey man sorry I took so long, thought I was going to have an easy time in there but fell pray to the Muddy Doody Society.
Man #2: Shit man your first time becoming a member of the MDS?
Man#3: Hell no my wife checks my fingernails before we go to bed at night and she makes sure I have my membership card in my wallet.
Man #2: Shit man your first time becoming a member of the MDS?
Man#3: Hell no my wife checks my fingernails before we go to bed at night and she makes sure I have my membership card in my wallet.
by Looneylarry August 29, 2012

A single white female that lives in close proximity to a bando. She often drinks in questionable locations (dives) whilst preying on older men (donkeys) with tattoos and bad attitudes. Also see: Jellybean
by Marg24 July 6, 2015

When a girl is wet and the guy slips into the butthole...accidentally! Owwww...This is called the biG mUDDY sLIDE!
I had a guy accidentally slip into my butthole and I HATED it!!!!!!!!!!!!!! This is called the bIG mUDDY sLIDE!
by GIRL IN MT June 25, 2007

by G.P. June 11, 2006

by funtimebabyeater January 6, 2010

by dunno August 20, 2003

When a woman inserts a funnel into a mans rectum and proceeds to hover over him while masturbating until the point of squirting, which she does into the funnel. Thus creating a muddy man cave
Zo was feeling freaky after drinking ghb and What is more than elated to give her man a muddy man cave
by Gorilla zo and hurricane February 4, 2022
