mickey finn

The phrase "mickey finn" refers to a drink that has been secretly spiked with drugs or other substances, typically in order to incapacitate or render someone unconscious for various purposes, often to take advantage of them or commit a crime. The term is derived from the real-life story of a Chicago bartender named Mickey Finn, who was notorious for adding drugs to customers' drinks in the late 19th century. Today, "mickey finn" is also used metaphorically to describe something deceptive or harmful disguised as innocent or benign.