A legosaurus! Randomly made up this the other night, thought I'd share.
IS SOMEONE OUT ON THE VEST? THE VEST? THE VEST? THE VESTIBULE?"
Friend: "Nothing" Me: "But I thought he got the job! " Friend: "Yes he did."
A: Stegosaur-rust!
a Cankersaurus!
Somebody who stays up all night torturing himself mentally over the question whether or not theres a dog.
Shelfish