Wiktionary
n. 1 (context countable English) One kernel of the Cracker Jack snack. 2 (context uncountable English) A quantity of the snack. Usually Cracker Jacks. n. (context trademark English) A boxed snack consisting of caramel-coated popcorn and peanuts, well known for including surprise toys of nominal value.
Wikipedia
Cracker Jack is an American brand of snack consisting of molasses-flavored caramel-coated popcorn and peanuts, well known for being packaged with a prize of trivial value inside. The Cracker Jack name was registered in 1896. The slogan "The More You Eat The More You Want" was also registered that year. Some food historians consider it the first junk food. Cracker Jack is famous for its connection to baseball lore. The Cracker Jack brand has been owned and marketed by Frito-Lay since 1997. Frito Lay has announced that the prize is going to be removed and replaced with a QR code which can be used to download a baseball game.
Usage examples of "cracker jack".
The frisk is less than professional, but Prince Charming finds what he's looking for, so the grand finale comes when he lifts the third Glock out of my ankle holster and shows it to Jules like it's the prize in the Cracker Jack box.
You're like this terrific prize that turned up in a box of rancid old Cracker Jack.
Now how did your honest friend happen to get his hands on a blue diamond that makes the Hope look like a prize in a box of Cracker Jack?
One day, Ruthie gets embroiled in an argument over a box of Cracker Jack with some other children.
To see what a cracker jack job Florida is doing to regulate the private security business, I checked our clippings from the last five years.
They'd probably trade it to someone for a lollipop or a Cracker Jack ring.
And it's a shame they have a cracker jack pilot who safely landed their plane after you loosened the fuel caps.