hit the hay

hit the hay idiom
Also, hit the sack. Go to bed, as in I usually hit the hay after the eleven o'clock news, or I'm tired, let's hit the sack. The first colloquial expression dates from the early 1900s, the variant from about 1940.

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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