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 9, 2007
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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 6, 2004
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One who cuts a smelly fart in a circumstance in which all are grossed out and suffer, such as an office meeting, at the dinner table, in a restaurant, etc.
Have a little respect you stinkbutt bastard - it's your own grandmother's funeral!
by Rod Brock August 1, 2006
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Adj. When someone's butt smells bad or when they are being very annoying.
Brady : "Yo what's that smell?"
Summer : "It's Carsyn, she's a Stinkbutt Johnson"
Brady : "She smells like diarrhea"
by susiejoejoSBJ September 24, 2020
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