Top Definition
Disease contracted only by cats, causing them to have crust grown on thier buthole. It is a very common and good kind of illness, because when the cat uses the litter box, the crust is moved around the buthole as the poop comes out, resulting in the cat kicking his back legs up from the tickle of the moving crust and ensuring the cover up of it's poop.
Phil said "My house doesn't stink as much since my cat contracted crusty buthole".

Rilo replied "Oh yeah, they cover it up every time they use it, my cats the same way".
by Chaddog January 01, 2010
5 Words related to Crusty Buthole

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