A buttscab is the crispy little wafer of feces that clings to the anus of a cat. Sometimes these tasty little treats can be found on the ground in the shape of a brown cnowflake. Each one is unique but they're hard to find because cats are idiots and love eating their own shit.
LOL I just put a butt scab in your can of pringles.

or

That butt scab dangling off your siamese's butthole looks mighty delicious!
by Robert Sellers April 04, 2006

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Top Definition
An individual you find extremely annoying and hard to get rid of.
Get out of my face you butt scab!
by Mindy February 13, 2005

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