be cool

be cool

English

Etymology

be +‎ cool

Interjection

be cool

1. (imperative) Used to implore someone to not reveal illegal or improper activity.
   • 2016, Erin Udell, "Could CSU's Chase McNary be the next Bachelor?", The Coloradoan:

     That's why I scoured our newsroom for red yarn, watched an episode of "The Bachelorette" during work (shhh, be cool) and tacked pictures of reality TV stars alongside a scrap of notebook paper...