Like retarded, except slightly stupider. Typically used by people who for some reason can't spell retarded.
Your cat has retardism
Did you just say retardism? The word is retarded
Oh.
A word used by people who forgot how to spell retarded, or that the word is retarded. They instead opt for the word retardism
Your cat has retardism.
Did you just say retardism? The word is retarded.
Oh.