knockout drops

American  

plural noun

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

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knockout drops British  

plural noun

1. slang a drug secretly put into someone's drink to cause stupefaction See also Mickey Finn

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Etymology

Origin of knockout drops

First recorded in 1890–95

Example Sentences

Under the sway of the most sublime knockout drops, I didn’t remember a thing.

From Washington Post

But Frank Brooks wasn't full of knockout drops this time, and with a clear head he was no pushover.

From Project Gutenberg

"The same old knockout drops, sir, that sailors in all parts of the world know so well, sir, I think," answered one of the men, with a quiet grin.

From Project Gutenberg

"Sudden remedies are sometimes good in extreme cases, Luke," he drawled, "but administering knockout drops to a sick party is not to be recommended."

From Project Gutenberg

He had a horror of knockout drops and the police.

From Project Gutenberg