scooby doo

/ (ˌskuːbɪ ˈduː) /

rhyming slang a clue I don't have a scooby doo what you're talking about Often shortened to: scooby

Word Origin for scooby doo

C20: from Scooby Doo, a cartoon character on children's television

The composite photo whose eyes follow you around the room are less Matthew Lewis or Sheridan Le Fanu than “Scooby-Doo.”

An Ivy League Frat Boy’s Shallow Repentance |Stefan Beck |November 24, 2014 |DAILY BEAST
Plus, if you have kids, you may recognize her as Velma in the live-action Scooby-Doo movies.

The Most Random Old TV Stars to Appear on ‘Mad Men’ |Kevin Fallon |May 29, 2014 |DAILY BEAST
It was that Oogie Boogie was actually Dr. Finkelstein in disguise—sort of a Scooby-Doo sort of ending.

Henry Selick on Directing ‘The Nightmare Before Christmas’ |Marlow Stern |October 29, 2013 |DAILY BEAST
A human dressed in a heavy Scooby-Doo costume pushed his way through the sweating humanity.

Demonstrators Pro and Con Greet Supreme Court Health Care Decision |Lloyd Grove |June 28, 2012 |DAILY BEAST

Then, down by a little beach on the lake, was God (Seven of Diamonds) with Scooby-Doo (Six of Diamonds).

Following Joshua Foer to the USA Memory Championship |Rob Verger |April 1, 2012 |DAILY BEAST