Yabba-Doo
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Yabba-Doo is a fictional cartoon dog created by Hanna-Barbera Productions as a character for their Scooby-Doo spin-off Scrappy and Yabba-Doo, which aired as a backup segment of The Scooby & Scrappy-Doo/Puppy Hour from 1982 until 1983.
Yabba, Scooby-Doo's brother, is a white Great Dane, shown to be more courageous than his cowardly sibling. His adventures take place out west, where he fights crime with his master, a bumbling deputy named Dusty, and his enthusiastic nephew Scrappy-Doo. In contrast to Scooby's catchphrase of "Scooby-Dooby-Doo!", Yabba's was "Yippity-Yabbity-Doo!" (and not "Yabba-Dabba-Doo!", presumably due to another Hanna-Barbera character's use of that particular catchphrase).