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knockout drops

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plural noun

chloral hydrate or any similar rapidly acting drug, especially one put in a drink secretly to make the drinker unconscious.

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“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

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Origin of knockout drops

First recorded in1890–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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British Dictionary definitions for knockout drops

knockout drops

pl n

slang a drug secretly put into someone's drink to cause stupefactionSee also Mickey Finn
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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