scooby doo

/ ˌskuːbɪ ˈduː /

noun

1. slang:rhyming.
   a clue Often shortened toscooby

   I don't have a scooby doo what you're talking about

Word History and Origins

Origin of scooby doo¹

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

Example Sentences

Scooby Doo, a massive pit monster, was a crowd-pleaser as a lion with an unruly golden mane.

From Seattle Times

But if a National Geographic documentary about canine evolution seems too highbrow for your four-legged friend, Scooby Doo might be a perfectly acceptable option as well.

From Science Daily

"They were beautiful, but I didn't have a scooby doo what I was doing with my camera," he said.

From BBC

Mike takes a night job at the diner given to him by mysterious Steve Raglan, portrayed by Scream and Scooby Doo! star Matthew Lillard.

From BBC

Think of him as Fred of “Scooby Doo.”

From Los Angeles Times