Moo!
Cow: I was just about to say that!
Moo!
Cow: I was just about to say that!
Alright listen up buttercup, this joke is so dumb it's almost genius. One cow says "Moo!" and the other cow is all like, "Hey, I was gonna say that!" It's funny because cows only say "moo," so it's like they're having an original thought, which is something you probably can't relate to, you silly goose!