- One who, or that which, cracks. - A noisy boaster; a swaggering fellow. - 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. - A thin, dry biscuit, often hard or crisp; as, a Boston
cracker; a Graham cracker; a soda cracker; an oyster cracker. - A nickname to designate a poor white in some parts of the
Southern United States. - The pintail duck. - A pair of fluted rolls for grinding caoutchouc.
Meaning of 'cracker' (Princeton's WordNet)
1 . cracker
[ n]
Meaning (1): - a programmer who cracks (gains unauthorized access to) computers, typically to do malicious things