Mickey is a \"dangerous\" alcoholic drink. What did he contain?ricinchloral hydratemethanolcocainecapacitate them. Serving someone a \"Mickey\" is most commonly referred to as slipping someone a mickey.

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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.