Origin of Phrases - H
Hit the sack
Meaning: To go to bed, to retire for the evening to sleep.
Example: Man, am I bushed, I'm going to hit the sack.
Origin: Although fallen out of common usage, one definition of a sack is a bed. Early mattresses were often made from a cloth sack stuffed with hay, hair, or some other form of padding. In fact "sack out" is defined as "to go to bed, to go to sleep".
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