cracker

cracker is a   Noun

Definition:

[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.

Synonyms: