Historical clue formulations

• Shaggy's dog, to Shaggy — 2023-06-11
• 2020 film starring a cartoon dog — 2023-04-30
• Snack-motivated Great Dane of toons — 2023-02-07
• Great Dane of cartoons, informally — 2020-12-21
• Cartoon uncle of Scrappy-Doo, informally — 2018-12-19
• Cartoon Great Dane, informally — 2016-04-17
• Saturday morning cartoon dog, informally — 2012-06-20
• Shaggy's nickname for his canine friend — 2012-05-07