Plenty of the slickest money ever printed—an' the other stuff, too—an' you afraid to take a chance.
He was, they decided, the "slickest" man they had ever seen.
I must say that was the slickest, pluckiest thing ever I saw anywheres.
She's a pal of mine, if you want to know, the slickest thief that ever robbed a flat.
Guess we'll show you the slickest round up this side o' the border.
Hes a slick articlein fact, the two of them are a pair of the slickest articles its ever been my misfortune to run across.
Say, of all the scientific squirmin', Gedney Nash can put up the slickest specimen.
I dont know how many jobs hes pulled off, but every one of them has shown the slickest kind of workmanship.
He knew now—the slickest job of hypnotic flattery ever invented.
Billy Sunday has promoters the slickest in the business: men who have had the experience of years in all sorts of schemes.
Old English -slician (in nigslicod "newly made sleek"), from Proto-Germanic *slikojan, from base *slikaz (cf. Old Norse slikr "smooth," Old High German slihhan "to glide," German schleichen "to creep, crawl, sneak," Dutch slijk "mud, mire"), from PIE *sleig- "to smooth, glide, be muddy," from root *(s)lei- "slimy" (see slime (n.)). Related: Slicked; slicking.
1620s, a kind of cosmetic, from slick (v.). Meaning "smooth place on the surface of water caused by oil, etc." is attested from 1849. Meaning "a swindler, clever person" is attested from 1959.
early 14c., "smooth, glossy, sleek" (of skin or hair); sense of "clever in deception" is first recorded 1590s; that of "first-class, excellent" is from 1833. Related: Slickly; slickness.
[earlier 1800s uses were in comparative phrases like slick as bear's grease and slick as molasses]