cracker
noun
1.
a thin crisp wafer made of flour and water with or without leavening and shortening; unsweetened or semisweet
2.
a poor White person in the southern United States
3.
a programmer who cracks (gains unauthorized access to) computers, typically to do malicious things
Derived from:
crack 4.
firework consisting of a small explosive charge and fuse in a heavy paper casing
Derived from:
crack 5.
a party favor consisting of a paper roll (usually containing candy or a small favor) that pops when pulled at both ends
Derived from:
crack