1. Cool Your Jets Instant

or Take a chill pill : Modern, very informal ways to say the same thing.

: One of its earliest recorded uses is in the 1952 novel Stand by for Mars! from the Tom Corbett, Space Cadet series, where a character is told, "Cool your jets, space creep!". 1. Cool Your Jets

: To advise caution when someone is acting impulsively out of enthusiasm (e.g., "Cool your jets, Sarah. Make sure you have the job offer in writing first."). or Take a chill pill : Modern, very

: To stop someone from getting overly worked up or angry (e.g., "Cool your jets! It's not worth fighting over."). : To advise caution when someone is acting

: To tell someone to wait when they are rushing a process (e.g., "Cool your jets—the results won't be ready for another hour."). Common Synonyms

"" is an informal American idiom used to tell someone to calm down , slow down, or stop being so impatient or angry. It suggests that a person should lower their emotional intensity, much like allowing a powerful jet engine to cool off before pushing it again. Origin and History

If "cool your jets" feels too informal or dated, you might use: