What Does "he's out like a light" Mean?
Learn what "he's out like a light" means, when people say it, and how to use it naturally in English.
He's out like a light.
It means someone fell asleep very quickly and is sleeping deeply.
From In Her Shadow, Episode 3
When do people say this?
Scene Context
The speaker says a man is sleeping very deeply.
Usage Scenario
Use this in casual conversation about sleep. It is informal and idiomatic, so learners may not want to use it in formal situations.
Better ways to say it
He's out like a light.
She was out like a light.
He fell asleep right away.
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