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Acting like a crazy person who just ate a whole pie and then threw it at a cop.
My cousin is kah-kah koo-koo. He tried to talk to a pigeon and got yelled at by a traffic light.
She’s kah-kah koo-koo. She wore socks with sandals and tried to argue with a vending machine.
My dog is kah-kah koo-koo. He bit my homework and tried to run away with my lunch.