Cracker

Part of speech: noun (n.)

1. One who, or that which, cracks.

2. A noisy boaster; a swaggering fellow. [Obs.] What cracker is this same that deafs our ears Shak.

3. A small firework, consisting of a little powder inclossed in a thick paper cylinder with a fuse, and exploding with a sharp noise; - - often called firecracker.

4. A thin, dry biscuit, often hard or crisp; as, a Boston cracker; a Graham cracker; a soda cracker; an oyster cracker.

5. A nickname to designate a poor white in some parts of the Southern United States. Bartlett.

6. The pintail duck.

7. A pair of fluted rolls for grinding caoutchouc. Knight.