cracker

noun
  1. A thin, crisp biscuit or wafer, typically made from flour and water, often eaten as a snack or used as a base for toppings such as cheese or spreads. noun
    She nibbled on a saltine cracker with her soup.
    He bought a box of whole grain crackers for the picnic.
  2. A person who is exceptionally skilled or successful at something, often used in phrases like 'a real cracker' to denote excellence or impressiveness. noun
    That new car is a real cracker; it performs amazingly.
    She's a cracker at chess; she always wins tournaments.
  3. A device that produces a cracking or snapping sound, such as a firecracker or a device used to break open something, like a nutcracker. noun
    The firecracker went off with a loud crack during the celebration.
    He used a nutcracker to crack open the hard shell of the almond.
  4. In slang or colloquial usage, a derogatory term for a person who is considered to be foolish or contemptible, often used in phrases like 'a little cracker' or 'a dirty cracker'. noun
    He called him a lazy cracker after he missed the deadline.
    The movie portrayed the villain as a real cracker.