Lumpy is one of the main characters of Happy Tree Friends, and one of the four primary characters of the show. Lumpy is a light blue anthropomorphic moose (originally a dinosaur) with a low I.Q. (intelligence quotient), teeth that appear on his nose or mouth, weird eyes, and mismatched antlers. Instead of the normal small, plump body with a large, oval head, he is taller and skinnier than the other characters and has a smaller, narrower, elongated head.