English edit

Etymology edit

Outgrowth of the earlier idiom, to hit the sack (to lie down to sleep), with possible influences from other senses of to sack (to tackle, to pillage), and to sock (to hit, to slam), providing an implication that sleep has been thrust upon a person.

Pronunciation edit

  • (file)

Adjective edit

sacked out (not comparable)

  1. (idiomatic) Sound asleep, usually from a healthy exhaustion.
    The kids are sacked out in the back seat.

Verb edit

sacked out

  1. simple past and past participle of sack out
    The kids sacked out in the back seat before we made it home.

See also edit