sleep out

sleep out idiom
  1. Sleep at home, as opposed to one's place of employment, as in We have a full-time nurse for her, but she sleeps out. [Mid-1800s]
  2. Sleep away from one's own home, as in She's not here; she's sleeping out.

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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