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slang a drug secretly put into someone's drink to cause stupefaction. See also Mickey Finn
a drug, esp. chloral hydrate, put in a drink secretly to make the drinker unconscious.
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|Noun||1.||knockout drops - chloral hydrate in combination with alcohol; usually administered surreptitiously to make the drinker unconscious|
chloral hydrate - a colorless crystalline drug used as a sedative; irritates the stomach and can be addictive
Mickey Finn - slang term for knockout drops