cracker
英 ['krækə]
美['krækɚ]
	    - n. 爆竹;饼干;胡桃钳;解密高手
 
英英释意
- 1. a thin crisp wafer made or 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;
 - "crackers are often mistakenly called hackers"
 
- 4. firework consisting of a small explosive charge and fuse in a heavy paper casing
 
- 5. a party favor consisting of a paper roll (usually containing candy or a small favor) that pops when pulled at both ends