cracker

noun

1. a thin crisp wafer made of flour and water with or without leavening and shortening; unsweetened or semisweet

   noun.food

   Source: WordNet 3.0

2. a poor White person in the southern United States

   noun.person

   Synonyms redneck

   Source: WordNet 3.0

3. a programmer who cracks (gains unauthorized access to) computers, typically to do malicious things

   noun.person

   Examples

   Crackers are often mistakenly called hackers.

   Source: WordNet 3.0

4. firework consisting of a small explosive charge and fuse in a heavy paper casing

   noun.artifact

   Synonyms banger firecracker

   Source: WordNet 3.0

5. a party favor consisting of a paper roll (usually containing candy or a small favor) that pops when pulled at both ends

   noun.artifact

   Synonyms cracker bonbon snapper

   Source: WordNet 3.0

6. One who, or that which, cracks.

   noun

   Source: webster1913