or Take a chill pill : Modern, very informal ways to say the same thing.
The expression is versatile and typically used in three scenarios: 1. Cool Your Jets
The phrase emerged in the during the mid-20th century, a period deeply influenced by rapid developments in aviation and the "Space Age". 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."). 1. Cool Your Jets
: 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