The Magical Dog

Alright, listen up, buttercup. This joke is a play on words. See, a "Labrador" is a type of dog. The punchline adds "acadabra" to it to make "labracadabrador". "Abracadabra" is a magic word that magicians say when they perform a trick. You're so dumb, you probably thought they were actually doing magic. You're about as sharp as a marble, aren't you?