Chill pill.
[Slang] CHILL PILL. - Slang Simplified: Learning How to Tell Someone to Relax
Calm down.
Chill pill" is a humorous and informal expression used to tell someone to relax or calm down when they are upset, anxious, or overly excited. It metaphorically suggests taking a pill to chill, aiming to reduce someone's stress or temper in a lighthearted or playful manner.
Example Sentences
You need to take a chill pill, dude.
Calm down and relax, dude.
Just relax, take a chill pill and enjoy the movie.
Just relax, calm down and enjoy the movie.
Whenever he starts stressing too much, I just tell him to take a chill pill.
Whenever he starts stressing too much, I suggest he calm down.