Nouns

(n)crackera thin crisp wafer made of flour and water with or without leavening and shortening; unsweetened or semisweet
(n)redneck, crackera poor White person in the southern United States
(n)crackera programmer who cracks (gains unauthorized access to) computers, typically to do malicious things“crackers are often mistakenly called hackers”
(n)firecracker, cracker, bangerfirework consisting of a small explosive charge and fuse in a heavy paper casing
(n)cracker, snapper, cracker bonbona party favor consisting of a paper roll (usually containing candy or a small favor) that pops when pulled at both ends