The burning sensation that occurs after one has taken an epic diarrhea.
Dude 1: Why are you walking so slow? It looks like you got raped.

Dude 2: this butt burn is killing me!
by The hempn February 1, 2010
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After pooping and wiping your butt so often because of diarrhea, your butt crack chafes and hurts.
"Dude, I feel like crap as it is and NOW I have butt burn."
"That sucks."
by firecheeks October 31, 2009
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Worst fucking pain you can feel in your asshole.
Aileen: did u see gabby last night what the fuck happened?
Denise: idk but she couldnt walk straight
Gabby: GUYZ I HAD BURNING BUTT!!!!
by Pussy gabby weed March 23, 2014
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