look up any word, like the eiffel tower:
 
2.
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.

Stink butt 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 stink butt.

Hey, take a shower first... you have stink butt!

by Del Zeppnile July 09, 2007
 
1.
An affectionate term for your boyfriend etc when he farts really bad.
"Hey stinkbutt open the bedroom window before i die in here!!"
by sheila December 05, 2004
 
3.
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!
by Del Zeppnile July 09, 2007
 
4.
When a dog's anal sacs become blocked and the dog scoots its butt on the ground to dislodge the blockage.
Oh no, Maddy has stink butt again!
by Maddygirl April 24, 2006