From Wiktionary, the free dictionary
jinkies
- Expressing surprise or amazement.
2004, Scooby-Doo 2: Monsters Unleashed:Jinkies! Tweety's Back!
2004, Jerrilyn Farmer, Mumbo Gumbo: A Madeline Bean Novel[1], page 104:“Jinkies, Holly,” I said calmly. “Hold your horses.”
1999, Scooby-Doo[2], Golden Books:"Jinkies, that's the man from the dart game!" Velma exclaimed.