Meanings
- idiomaticnot comparableSound asleep, usually from a healthy exhaustion.
The kids are sacked out in the back seat.
- participlepastsimple past and past participle of sack out
The kids sacked out in the back seat before we made it home.
Synonyms & antonyms
Origin
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.
Full word history & related roots →Cite this entry
sacked out. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/sacked%20out
“sacked out.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/sacked%20out. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “sacked out,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/sacked%20out.
Source: sacked out on Wiktionary, CC BY-SA 4.0.