Wiktionary
n. 1 (Cracker Jack English) 2 (context uncountable informal English) Some of the Cracker Jack caramel-coated popcorn snack.
Usage examples of "cracker jacks".
He was sucking on candy sourballs, and when he crunched them up he opened a box of Cracker Jacks.
Suddenly geese were rushing at me from every corner of the park, running on their stupid goose webbed feet, waggling their fat goose asses, flapping their big goose wings, their beady, black goose eyes fixed on my Cracker Jacks.
I almost as scarce as pearls in Cracker Jacks, she really couldn't afford to be generous.
Moreover, with no financial help from Boomer, who had sunk everything into his loft and his show, and with tips at the I & I almost as scarce as pearls in Cracker Jacks, she really couldn't afford to be generous.
I wouldn't go near his kitchen, even if it was stuffed to the brim with Cheetos and Cracker Jacks.
The ocean had eaten it, all of it, as casually as you might eat a handful of Cracker Jacks.