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First used by Astro on the cartoon The Jetsons and later by Scooby-Doo in the Scooby-Doo cartoon series; both characters are dogs who speak broken English with the insertion of many r's.




  1. (humorous) Alternative form of uh-oh
    • 2007, Robert Thompson, Barbara Fritchman Thompson, Building the Perfect PC, O'Reilly, published 2007, →ISBN, page 228:
      After we finished securing the motherboard, we planned to shoot an image of the rear I/O panel to show that none of the grounding tabs were obstructing ports. Ruh-roh. When we got down to shoot a close-up, we were surprised to see that both Gigabit Ethernet ports were obstructed, []
    • 2011, Kristan Higgins, Until There Was You[1], Harlequin, published 2011, →ISBN:
      Ruh-roh, Posey thought. Something was about to hit the fan.
    • 2012, Roxanne St. Claire, Don't You Wish, Delacorte Press, published 2012, →ISBN, page 352:
      Missy makes a face. “Ruh-roh. He sounds mad."
    • For more quotations using this term, see Citations:ruh-roh.