1. a brand of caramel-coated popcorn and peanuts, traditionally sold with a small prize inside
Usage: trademark; often capitalized as Cracker Jacks
2. people who are exceptionally skilled or excellent at something
Usage: informal; plural of crackerjack

Examples

• We bought Cracker Jacks at the baseball game.
• The kids were excited to find the toy prize in their Cracker Jacks.
• She always keeps a box of crackerjacks in her desk drawer.
• The mechanics at that shop are real crackerjacks when it comes to engine repair.
• Those crackerjacks solved the problem in no time.
• The team hired crackerjacks from the best universities.