| noun | a thin crisp wafer made of flour and water with or without leavening and shortening; unsweetened or semisweet |
| noun | a poor White person in the southern United States |
| noun | a programmer who cracks (gains unauthorized access to) computers, typically to do malicious things “crackers are often mistakenly called hackers” |
| noun | firework consisting of a small explosive charge and fuse in a heavy paper casing |
| noun | a party favor consisting of a paper roll (usually containing candy or a small favor) that pops when pulled at both ends |
| adjective | informal or slang terms for mentally irregular “it used to drive my husband balmy” |
| crack | verb | gain unauthorized access computers with malicious intentions |
| bang | verb | to produce a sharp often metallic explosive or percussive sound |
| snap | verb | cause to make a snapping sound |
| daftness | noun | informal terms for insanity |
| kook | noun | someone regarded as eccentric or crazy and standing out from a group |
| loon | noun | a person with confused ideas; incapable of serious thought |