"excellent," colloquial from 1830s, from present participle of crack (v.).
"split, opening," 14c., from crack (v.). Meaning "try, attempt" first attested 1836, probably a hunting metaphor, from slang sense of "fire a gun." Meaning "rock cocaine" is first attested 1985. The superstition that it is bad luck to step on sidewalk cracks has been traced to c.1890. Adjectival meaning in "top-notch, superior" is slang from 1793 (e.g. a crack shot).
cracking (krāk'ĭng) The process of breaking down complex chemical compounds by heating them. Sometimes a catalyst is added to lower the amount of heat needed for the reaction. Cracking is used especially for breaking petroleum molecules into shorter molecules and to extract low-boiling fractions, such as gasoline, from petroleum. See also hydrocracking. |
Excellent; first-rate: a cracking meal
adverbVery: a cracking good meal
noun: Ragging, bagging, snapping, and cracking, these are all word games teens use as a way of competing with one another (1990s+ Teenagers) (1830+)
Related Termsfall between the cracks, give something a shot, have a crack at something, wisecrack
[all senses are ultimately echoic; narcotics sense fr the sound of breaking crystals or the cracking sound the crystals make when smoked]