be cool

== English == === Etymology === From be +‎ cool. === Interjection === be cool (imperative) Used to implore someone to not reveal illegal or improper activity. (imperative) Used to remonstrate someone for being (inadvertently) awkward, nerdy, geeky, or embarrassing. ==== See also ==== (illegal or improper): (awkward, nerdy, etc): === Anagrams === Belcoo