lights out

noun

Unconsciousness.

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Meanings

noun
  1. alternativeAlternative form of lights-out.
  2. idiomaticUnconsciousness.

    There had been one almighty BANG and then it had been lights out.

    2007, Kathryn Deans, Glow
    2 more examples

    It's lights out as Bruno is whacked on the back of his head with a black jack.

    2012, Anthony C. TriparI, Butchie, page 112

    Instant nausea, impaired vision, and the feeling of impending death, all prior to lights out.

    2012, Jeni Decker, I Wish I Were Engulfed in Flames
verb
  1. indicativepresentsingularthird personthird-person singular simple present indicative of light out
Cite this entry
APA

lights out. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/lights%20out

MLA

“lights out.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/lights%20out. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “lights out,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/lights%20out.

Source: lights out on Wiktionary, CC BY-SA 4.0.