Dictionary.com
Thesaurus.com
Synonyms

out like a light

Idioms  
  1. see under out cold.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

His team played strongly for the final half hour of the first half but they went out like a light after that.

From BBC • Dec. 14, 2025

That wasn’t a problem for Smith, who said that after he broke down some film, he put on his headphones and earbuds, turned on music and was out like a light.

From Seattle Times • Nov. 10, 2022

We were designed to burn out, like a light bulb that was overamped.

From New York Times • Aug. 9, 2018

I was out like a light the instant I closed my eyes.

From The New Yorker • Jun. 17, 2014

“Mom is out like a light, and we have to let her rest, okay? Don’t make a lot of noise going up the stairs. I’m in the guest room if you need anything.”

From "Auggie & Me" by R. J. Palacio