Most often shortened to "Scooby".
This phrase is now so popular that it has broken out of the confines of Cockney slang and entered into general spoken British English. The phrase "Haven't got a Scooby" can now be heard all over the UK.
It's a great example of the kind of new rhyming slang that is most likely to catch on because of course Scooby Doo was always looking for clues!
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