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chill pill

American  
[chil pil] / ˈtʃɪl ˌpɪl /

noun

  1. something that has a calming or relaxing effect.

idioms

  1. take a chill pill, (often used imperatively) to calm down; relax.

    Stop shouting! Take a chill pill!
chill pill British  

noun

  1. informal an imaginary medicinal pill with a calming, relaxing effect

    take a chill pill
"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

Etymology

Origin of chill pill

First recorded in 1980–85

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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