Question

Cool It to relax, calm down; to stop being so excited or angry

Accepted Answer

I told Meryl and Micki to cool it and stop arguing. This example of American slang, usually spoken as an irritated command, originated in the 1950s. When a person starts getting angry, a good piece of advice is to "cool it." Get control of yourself and relax.

Idiom	Cool It
Example	I told Meryl and Micki to cool it and stop arguing.
Meaning	to relax, calm down; to stop being so excited or angry
Origin	This example of American slang, usually spoken as an irritated command, originated in the 1950s. When a person starts getting angry, a good piece of advice is to "cool it." Get control of yourself and relax.

Cool Stop I Told Meryl Micki Arguing Relax