<Tr> <Td> </Td> <Td> This article has an unclear citation style . The references used may be made clearer with a different or consistent style of citation and footnoting. (April 2016) (Learn how and when to remove this template message) </Td> </Tr> <P> In slang, a Mickey Finn--or simply a Mickey--is a drink laced with a psychoactive drug or incapacitating agent (especially chloral hydrate) given to someone without their knowledge, with intent to incapacitate them . Serving someone a "Mickey" is most commonly referred to as slipping someone a mickey . </P> <P> The Mickey Finn is most likely named after the manager and bartender of the Lone Star Saloon and Palm Garden Restaurant, which operated in Chicago from 1896 to 1903, on South State Street in the Chicago Loop neighborhood . In December 1903, several Chicago newspapers document that a Michael "Mickey" Finn managed the Lone Star Saloon and was accused of using knockout drops to incapacitate and rob some of his customers . Moreover, the first known written example of the term, according to the Oxford English Dictionary (OED), is in 1915, which was 12 years after his trial and lends credence to this theory . </P> <P> The first popular account of Mickey Finn was given by Herbert Asbury in his 1940 book Gem of the Prairie: An Informal History of the Chicago Underworld . His cited sources are Chicago newspapers and the 1903 court testimony of Lone Star prostitute "Gold Tooth" Mary Thornton . Before his days as a saloon proprietor, Mickey Finn was known as a pickpocket and thief who often preyed on drunken bar patrons . The act of serving a Mickey Finn Special was a coordinated robbery orchestrated by Finn . First, Finn or one of his employees (including "house girls") would slip chloral hydrate into the unsuspecting patron's drink . The incapacitated patron would be escorted or carried into a back room by one of Finn's associates, who would then rob him and dump him in an alley . The victim would wake up the next morning in a nearby alley and would remember little or nothing of what had happened . </P>

Where did the term slip a mickey come from