noun: Scooby-Doo, a fictional cowardly anthropomorphic dog in a children's cartoon; used to make phrases bringing to mind aspects of that cartoon.
noun: (Cockney rhyming slang) A clue (insight or understanding).
noun: (Cockney rhyming slang) Alternative letter-case form of Scooby [Scooby-Doo, a fictional cowardly anthropomorphic dog in a children's cartoon; used to make phrases bringing to mind aspects of that cartoon.]