When your friend hops on your back buck naked, then you bend over and push their arm (the throttle) forward. Once this happens they let out a solid and aggressive stream of diarrhea and become your mud thruster.
by dberothehero May 16, 2023

The act of soliciting an outrageously overweight Girl Scout den mother, butt fucking her in a Texas Walmart parking lot, and letting her eat a thin mint out of your ass.
by Certified Hunni March 11, 2024

Tammy T From the. D.M.I
by Richard (Dick) Fitzwell June 9, 2022

by leslasa May 1, 2019

While in Oklahoma, combine a Luge (luge is a shot of your choice poured over the arse crack of a willing participant and the alcohol is collected as it drips off the participants bits) shot with an Alabama Pickle Back, by placing the finished pickle into the Luge before consuming.
e.g. Luge + Alabama Pickle Back = Oklahoma Mud Slide
e.g. Luge + Alabama Pickle Back = Oklahoma Mud Slide
by FrakkinRowdy July 4, 2021

by Tacoindaass December 31, 2017

Someone who is being particularly pessimistic. Similar to “Debbie downer”, calling someone a fart in the mud is just a gross way of saying your friends are being depressing.
by Professor Reat Ard March 25, 2022
