An individual who discriminates against cats.
Oh, that dog is such a catist!
by Henckly January 21, 2005
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People or person who truly believes that the internet meme "Ceiling cat" is a true god.
John: Hi my name is John but my friends call me Jesus.
Daniel: Cut it out. I believe in Ceiling Cat he came to me in a dream. So now me and Barrack Obama are Ceiling Catist's
John: When you say it! Your beliefs sound much more likely than mine. Where do i sign up?
by Ceilingcat's desiple January 8, 2010
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1) a person or persons that are against the existence of felines and participate in the acts of extermination or random acts of spite against cats

2) people involved in a society that is against LOLcats
1) Both Bob and Sally really had a hatred of cats.

2) Marcy is part of the Anti-catist society in Idaho
by Isley Kessler May 27, 2007
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