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hokey (adj.)[hokey 词源字典]: 1927, from hoke + -y (2). Related: Hokiness.[hokey etymology, hokey origin, 英语词源]
hokey-pokey: 1847, "false cheap material," perhaps an alteration of hocus-pocus, or from the nonsense chorus and title of a comic song (Hokey Pokey Whankey Fong) that was popular c. 1830. Applied especially to cheap ice cream sold by street vendors (1884), in Philadelphia, and perhaps other places, it meant shaved ice with artificial flavoring. The words also were the title of a Weber-Fields musical revue from 1912. The modern dance song of that name hit the U.S. in 1950 ("Life" described it Nov. 27, 1950, as "a tuneless stomp that is now sweeping the U.C.L.A. campus"), but it is said to have originated in Britain in World War II, perhaps from a Canadian source.
pokey (n.): "jail," 1919, of uncertain origin; Barnhart says perhaps altered from pogie "poorhouse" (1891), which itself is of unknown origin.
smokey (adj.): variant of smoky. As a noun, sometimes short for Smokey Bear.
Smokey Bear (n.): "state policeman," 1974, from truckers' slang, in reference to the wide-brim style of hat worn by state troopers (the hats so called by 1969). Ultimately the reference is to a popular illustrated character of that name, dressed in forest ranger gear (including a hat like those later worn by state troopers). He was introduced in 1944 by the U.S. Forest Service and the Wartime Advertising Council in a campaign to lower the number of forest fires in the West.