| 1. | a thin, crisp biscuit. |
| 2. | a firecracker. |
| 3. | Also called cracker bonbon. a small paper roll used as a party favor, that usually contains candy, trinkets, etc., and that pops when pulled sharply at one or both ends. |
| 4. | (initial capital letter ) Sometimes Disparaging and Offensive. a native or inhabitant of Georgia (used as a nickname). |
| 5. | Slang: Disparaging and Offensive. a poor white person living in some rural parts of the southeastern U.S. |
| 6. | snapper (def. 5). |
| 7. | braggart; boaster. |
| 8. | a person or thing that cracks. |
| 9. | a chemical reactor used for cracking. Compare catalytic cracking, fractionator. |
| 10. | crackers, Informal. wild; crazy: They went crackers over the new styles. |

| 1. | to break without complete separation of parts; become fissured: The plate cracked when I dropped it, but it was still usable. |
| 2. | to break with a sudden, sharp sound: The branch cracked under the weight of the snow. |
| 3. | to make a sudden, sharp sound in or as if in breaking; snap: The whip cracked. |
| 4. | (of the voice) to break abruptly and discordantly, esp. into an upper register, as because of weariness or emotion. |
| 5. | to fail; give way: His confidence cracked under the strain. |
| 6. | to succumb or break down, esp. under severe psychological pressure, torture, or the like: They questioned him steadily for 24 hours before he finally cracked. |
| 7. | Chemistry. to decompose as a result of being subjected to heat. |
| 8. | Chiefly South Midland and Southern U.S. to brag; boast. |
| 9. | Chiefly Scot. to chat; gossip. |
| 10. | to cause to make a sudden sharp sound: The driver cracked the whip. |
| 11. | to break without complete separation of parts; break into fissures. |
| 12. | to break with a sudden, sharp sound: to crack walnuts. |
| 13. | to strike and thereby make a sharp noise: The boxer cracked his opponent on the jaw. |
| 14. | to induce or cause to be stricken with sorrow or emotion; affect deeply. |
| 15. | to utter or tell: to crack jokes. |
| 16. | to cause to make a cracking sound: to crack one's knuckles. |
| 17. | to damage, weaken, etc.: The new evidence against him cracked his composure. |
| 18. | to make mentally unsound. |
| 19. | to make (the voice) harsh or unmanageable. |
| 20. | to solve; decipher: to crack a murder case. |
| 21. | Informal. to break into (a safe, vault, etc.). |
| 22. | Chemistry. to subject to the process of cracking, as in the distillation of petroleum. |
| 23. | Informal. to open and drink (a bottle of wine, liquor, beer, etc.). |
| 24. | a break without complete separation of parts; fissure. |
| 25. | a slight opening, as between boards in a floor or wall, or between a door and its doorpost. |
| 26. | a sudden, sharp noise, as of something breaking. |
| 27. | the snap of or as of a whip. |
| 28. | a resounding blow: He received a terrific crack on the head when the branch fell. |
| 29. | Informal. a witty or cutting remark; wisecrack. |
| 30. | a break or change in the flow or tone of the voice. |
| 31. | Informal. opportunity; chance; try: Give him first crack at the new job. |
| 32. | a flaw or defect. |
| 33. | Also called rock. Slang. pellet-size pieces of highly purified cocaine, prepared with other ingredients for smoking, and known to be especially potent and addicting. |
| 34. | Masonry. check 1 (def. 41). |
| 35. | a mental defect or deficiency. |
| 36. | a shot, as with a rifle: At the first crack, the deer fell. |
| 37. | a moment; instant: He was on his feet again in a crack. |
| 38. | Slang. a burglary, esp. an instance of housebreaking. |
| 39. | Chiefly British. a person or thing that excels in some respect. |
| 40. | Slang: Vulgar. the vulva. |
| 41. | Chiefly Scot. conversation; chat. |
| 42. | British Dialect. boasting; braggadocio. |
| 43. | Archaic. a burglar. |
| 44. | first-rate; excellent: a crack shot. |
| 45. | with a cracking sound. |
| 46. | crack down, to take severe or stern measures, esp. in enforcing obedience to laws or regulations: The police are starting to crack down on local drug dealers. |
| 47. | crack off, to cause (a piece of hot glass) to fall from a blowpipe or punty. |
| 48. | crack on, Nautical.
|
| 49. | crack up, Informal.
|
| 50. | crack a book, Informal. to open a book in order to study or read: He hardly ever cracked a book. |
| 51. | crack a smile, Informal. to smile. |
| 52. | crack wise, Slang. to wisecrack: We tried to be serious, but he was always cracking wise. |
| 53. | fall through the cracks, to be overlooked, missed, or neglected: In any inspection process some defective materials will fall through the cracks. Also, slip between the cracks. |
| 54. | get cracking, Informal.
|

| Main Entry: | cracker |
| Part of Speech: | n |
| Definition: | See Christmas cracker |
crack
|
"I should explain to your Lordship what is meant by crackers; a name they have got from being great boasters; they are a lawless set of rascalls on the frontiers of Virginia, Maryland, the Carolinas and Georgia, who often change their places of abode." [1766, G. Cochrane]
cracker jargon
An individual who attempts to gain unauthorised access to a computer system. These individuals are often malicious and have many means at their disposal for breaking into a system. The term was coined ca. 1985 by hackers in defence against journalistic misuse of "hacker". An earlier attempt to establish "worm" in this sense around 1981--82 on Usenet was largely a failure.
Use of both these neologisms reflects a strong revulsion against the theft and vandalism perpetrated by cracking rings. The neologism "cracker" in this sense may have been influenced not so much by the term "safe-cracker" as by the non-jargon term "cracker", which in Middle English meant an obnoxious person (e.g., "What cracker is this same that deafs our ears / With this abundance of superfluous breath?" -- Shakespeare's King John, Act II, Scene I) and in modern colloquial American English survives as a barely gentler synonym for "white trash".
While it is expected that any real hacker will have done some playful cracking and knows many of the basic techniques, anyone past larval stage is expected to have outgrown the desire to do so except for immediate practical reasons (for example, if it's necessary to get around some security in order to get some work done).
Contrary to widespread myth, cracking does not usually involve some mysterious leap of hackerly brilliance, but rather persistence and the dogged repetition of a handful of fairly well-known tricks that exploit common weaknesses in the security of target systems. Accordingly, most crackers are only mediocre hackers.
Thus, there is far less overlap between hackerdom and crackerdom than the mundane reader misled by sensationalistic journalism might expect. Crackers tend to gather in small, tight-knit, very secretive groups that have little overlap with the huge, open hacker poly-culture; though crackers often like to describe *themselves* as hackers, most true hackers consider them a separate and lower form of life, little better than virus writers. Ethical considerations aside, hackers figure that anyone who can't imagine a more interesting way to play with their computers than breaking into someone else's has to be pretty losing.
See also Computer Emergency Response Team, dark-side hacker, hacker ethic, phreaking, samurai, Trojan horse.
[The Jargon File]
(1998-06-29)