StankButt 

When a person accidentally poops while mooning someone, and the smell of their own feces causes them to make the stank face.

Cheryl had diarrhea, but had the sudden urge to moon Josh. While mooning Josh, Cheryl started to release her feces, and the smell caused her to express the stank face. And Josh experienced the full effects of the StankButt.

StankButt by PRUSUS June 30, 2014

Stank Butt 

When a nigga got some dirty ass farts like shit.

Guy 1:"Dayum i've been fartin all dizzay!"

Guy 2:"Nigga you got Stank Butt "

Guy 1:"TRUUUUUUEEEEEE"

Stank Butt by Wazwaz April 17, 2011

Skankbutter 

Foul smelling fluid produced by a fat skank who hasn't bathed in over a week, which expells from her pores.

It smells like skankbutter in here!

Skankbutter by mattwolf44 January 9, 2010

stinkbutt

When in the course of your day you took a big dump but was unable to get your ass crack as clean as it needed to be because of those lame ass little toilet paper squares in the high school bathroom or the local gas station.

Stinkbutt usually comes into play when it inhibits people from having sex until they have had a proper bath.

I wanted to make it with the chick but I knew I had a bad case of stinkbutt.

Hey, take a shower first... you have stinkbutt!

stinkbutt by Del Zeppnile December 30, 2008

stankusting

Someone who is stanky and also disgusting

omg this guy is so stankusting!!!!!!!111111!!@!@1

stankusting by mark mcdonald November 4, 2006

stinkbottom 

when the ass gets so stinky that it can be smelled when fully clothed, usually afflicts males

"the quirper rejoiced when her stinkbottom left the seat quite fragrant"

stinkbottom by Frotkopf August 8, 2006

starbutton

The Rear End Of A Cat as you may have noticed or not that it does in fact look like a button with a star shape on it....

Man i wish that cat would stop showing me his starbutton.

starbutton by David W.BY May 9, 2008