: 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:
: To stop someone from getting overly worked up or angry (e.g., "Cool your jets! It's not worth fighting over."). 1. Cool Your Jets
: Specifically used when someone's anger is "boiling over". Keep your shirt on : An older idiom for staying calm. Pop Culture Connections
: 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 : To advise caution when someone is acting
The phrase emerged in the during the mid-20th century, a period deeply influenced by rapid developments in aviation and the "Space Age".
: 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 It's not worth fighting over
"" 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