Shatty butt 

Having muddy or wet butt hole. The feeling of having a grimy stink star.

I ate some delectable hibachi at the Grove and had to poop something serious. After several wipes I failed to clean my shatty butt.

Shatty butt by Daveandmichellemattoosee June 20, 2019

Shitty Butt-Cum 

A substance produced during anal sex when a man sodomizes either a woman or another man and the ejaculate (or cum) of the male (that of the pitcher at any rate) is released into or around the anus (or, loosely, butt) of the other party. The resulting solution is mainly composed of seminal fluid (again, cum) with trace to mass amounts of errant fecal matter (or shit); hence the term "shitty butt-cum." Disambiguated from "santorum" in that it does not additionally require the presence of anal lubricants.

"Eww! You got shitty butt-cum all over Grandma!"

Shitty Butt-Cum by six_plus_one July 24, 2008

Shitty Butt Cum 

Similar to Santorum but not requiring the anal lube.

Eww! You got shitty butt cum all over grandma!

Shitty Butt Cum by six_plus_one December 5, 2005

Shitty Butt 

Someone that is upset or offended

Molly always gets shitty butt when people tell her she’s a hoe

Shitty Butt by coolcatbrat October 19, 2018

Sharty Mustard Butt 

When somebody sharts in their underwear and wallows around in it for a long period of time. The color and texture resembles a mustard like substance.

Brian is a sharty mustard butt.

Sharty Mustard Butt by KrissyNJbo June 19, 2010

Shittybutt 

When a person takes a shit and doesn't wipe their ass they become a Shittybutt. Its common for Shittybutts to not shower as well.

Chris- "Do you ever wipe your ass Justin."
Justin- "No."
Chris- "You Shittybutt piece of dick."
Justin- "At least I showered this week."

Shittybutt by Mekanaught February 21, 2011

Shitty poo poo butthole balls 

When the cold, slimy excrement from your huge, girthy ass crack slides down and touches your shriveling balls.

John: god damn it my shitty poo poo butthole balls picture just got deleted.
Finn: what the fuck

Shitty poo poo butthole balls by You sad human February 11, 2019