Jets | 1. Cool Your

: While it started in futuristic science fiction, it gained broader colloquial popularity by the 1970s as a metaphorical way to advise patience or emotional control. When to Use It

"" 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 1. Cool Your Jets

: 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!". : While it started in futuristic science fiction,

The expression is versatile and typically used in three scenarios: Origin and History : One of its earliest

: 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.").

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