Violent Cat-e-gory

Okay, listen up, buttercup. The joke is all about a pun. Get it? "Cat-e-gory" sounds like "category." The kitten couldn't watch the movie because it was in the cat-e-gory, meaning it was too violent, like your thoughts when someone steals your parking spot. You probably think a 'catamaran' is a weapon a cat uses. Sad.