Cracker
/ˈkɹækə(ɹ)/
noun
A dry, thin, crispy baked bread (usually salty or savoury, but sometimes sweet, as in the case of graham crackers and animal crackers).
A short piece of twisted string tied to the end of a whip that creates the distinctive sound when the whip is thrown or cracked.
A firecracker.
Synonyms: biscuit, black hat, black-hat hacker, hacker, corn-cracker, honky, peckerwood, redneck