"cracker" in the noun sense
a thin crisp wafer made of flour and water with or without leavening and shortening unsweetened or semisweet
2. redneck, cracker
a poor White person in the southern United States
a programmer who cracks (gains unauthorized access to) computers, typically to do malicious things
"crackers are often mistakenly called hackers"
4. firecracker, cracker, banger
firework consisting of a small explosive charge and fuse in a heavy paper casing
5. cracker, snapper, cracker bonbon
a party favor consisting of a paper roll (usually containing candy or a small favor) that pops when pulled at both ends
Source: WordNet® (An amazing lexical database of English)
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