chill pill

noun
1.
something that has a calming or relaxing effect.
Idioms
2.
Take a chill pill!, Disparaging Slang. (usually dismissively to someone who is agitated) Relax! Chill out!
Also, Take a pill!
British Dictionary definitions for chill pill

chill pill

noun
1.
(informal) an imaginary medicinal pill with a calming, relaxing effect: take a chill pill
Contemporary definitions for chill pill
noun

something calming, relaxing, or reducing stress

Word Origin

1980-85

Usage Note

slang

Slang definitions & phrases for chill pill

chill pill

noun phrase

A tranquilizer: They seem to have taken a chill pill musically, but the lyrics are as biting as ever (1990s+)