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"residue of fuel," 1690s, northern English dialect, perhaps a variant of Middle English colke "core, charcoal" (c.1400), itself possibly related to -colc, an Old English word for "pit," which perhaps would give it a sense of "what is left in the pit after a fire."
shortened form of cocaine, 1908, American English.
Intoxicated with cocaine; high: the new generation of ''coked'' gunmen/ the pair of strippers, a coked-out Pakistani princess and a coked-up Fire Island queen/ Marvella, you coked-out cunt (1920s+ Narcotics)
: coke peddlers/ coke sniffernoun
Coca-Cola, trademark name of a soft drink (1909+)