Mudbathing 

When you are taking a bath and you have really bad diarrhea, so you let the most vile pile of mud out of your ass

Bob: I just accidentally started mudbathing last night
Mel: You are a fucking dumbass

Mudbathing by blackmonkey445 April 1, 2023

Mudballing 

It is the scat equivalent of "snowballing" (which would normally happen with semen). It means swapping feces back and forth between two people's mouths.

Nile is a weirdo, he tried mudballing wih his gf before

Mudballing by Kyle Glue February 18, 2018

mudboating

When someone motorboats a mudbutt.

Dude, she was motorboating my ass, and i totally went mudbutt! Bitch was mudboating!

mudboating by Sir Jevius Muddbuttius March 5, 2010

Mudcatting 

When a man deficates in a womans vagina and she stands up and poops it out on the mans chest.

We are going mudcatting tonight.

Mudcatting by Ct February 2, 2017

Mudballing 

When you poop into one's ass and they reciprocate the poop and it gains in mass as it travels back in forth.

Steve "I'm gonna poop in your butt."
Lindsay "I'm gonna poop it back in your butt"
Steve "Mudballing. Hawt."

Mudballing by Shadow Kunai June 15, 2011