Top Definition
when ones cat licks their ass and then starts drinking the milk out of your cereal bowl. This usually happens when you leave your bowl on the table to get something/go somewhere/do something.
"Would you like a cold bowl of cereal?"
-No i dont want to take a chance on it turning into Cat Butt Cereal.
by Pubert-tea January 13, 2008
5 Words related to Cat Butt Cereal

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