to understand him perfectly. In most iterations, he keeps his sentences relatively short, usually using charades for anything longer than three or four words. His catch phrase , usually howled at the end of every episode, is "Scooby-Dooby-Doo!" or "Rooby-Rooby-Roo". He also usually says, at least once per episode, "Ruh-roh, Raggy" ("Uh-oh,