Jazz, jazz, jazz! It never changes. 

Pop Jenks ran the Sugar Bowl. It's possible that the Sugar Bowl ice cream shop in Scottsdale - patronized by cartoonist Bil Keane, who would have grown up with this strip was named after it. 

Pop Jenks was inspired by the real-life Pop Walters, who ran a soda fountain and stationery shop across from the high school Ed attended in Moline, Illinois. The Gedunk sundaes reached such popularity that Ed had to answer requests for a recipe. In the 1928 Harold Teen film, the sundae is a soupy concoction of ice cream and hot chocolate which is eaten by "gedunking" a large ladyfinger cookie in it. As noted in Random House’s Historical Dictionary of American Slang, the word "gedunk" soon entered military slang to refer to snack shops and ice cream.