CRACKER

cracker. Cracker, n. a firework, a boaster, hard bisket

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Crack″er (krăk″ẽr), n. 1. 1. One who, or that which, cracks.
2. 2. A noisy boaster; a swaggering fellow.
What cracker is this same that deafs our ears? Shak. 3. 3. A small firework, consisting of a little powder inclosed in a thick paper cylinder with a fuse, and exploding with a sharp noise; — often called firecracker.
4. 4. A thin, dry biscuit, often hard or crisp; as, a Boston cracker; a Graham cracker; a soda cracker; an oyster cracker.
5. 5. A nickname to designate a poor white in some parts of the Southern United States. Bartlett.
6. 6. (Zoöl.) The pintail duck.
7. 7. pl. (Mach.) A pair of fluted rolls for grinding caoutchouc. Knight.