Define Take A Chill Pill Meaning

if someone is nagging you, you say , "God , Take A Chill Pill!"

"Dude, take a chill pill..."

I would've been bored as hell the airplane trip, but fortunately my friend told me to take a chill pill so I slept through it.

Random Person #1: HEY DUDE WANNA KNOW THIS WANNA KNOW THAT HEY HEY DUDEEEEEE

Random Person #2: Calm down bud-

Random Person #1: I CAN'TTTTTTTTTTTTTTTTTTTT

Random Person #2: TAKE A CHILL PILL DUDE

Random Person #1: ...UH..YEAH I SHOULD HAVE THOUGHT OF THAT...