"Grrrr! " —Crusher's usual catchphrase. There is a problem with parsing the infobox Crusher is a character in The Looney Tunes Show.. Biography. Crusher first appeared in "Jailbird and Jailbunny", as a jail inmate.He is shown to hold a grudge against Bugs and Daffy for unknown reasons, possibly because they called him "neanderthal-shaped head man" many times throughout the episode.