cracker

A poor White person in the southern United States.

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

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

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

“crackers are often mistakenly called hackers”

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