play it cool

play it cool idiom
  1. Act cautiously and shrewdly, as in When they asked how much she earned, she played it cool. [Slang; 1940s]
  2. Become or remain calm, as in When they start to tease you, just play it cool. [Slang; 1940s]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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