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1) A burning sensation of the anus regardless of cause, which can be many; diarrhea from spicy foods, anal sex, etc...

2) A person who is elevated in loathesomeness to the next level beyond being a pain in the ass such that now is more of a burning rectal sensation rather than merely a simple pain.

When I had the squirts last night it was a real buttpepper.

Sally had a buttpepper and didn't shit right for a week after the football game party.

Your mother has been a real buttpepper lately.

by S Bishop July 08, 2006
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