lickety-split (adj.)youdaoicibaDictYouDict[lickety-split 词源字典]
1852, American English (earlier lickety-cut, lickety-click, and simply licketie, 1817), from lick (n.1) in dialectal sense "very fast sprint in a race" (1809) on the notion of a "lick" as a fast thing (compare blink).[lickety-split etymology, lickety-split origin, 英语词源]