Meaning of the word "go out like a light" in English

What does "go out like a light" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

go out like a light

US /ɡoʊ aʊt laɪk ə laɪt/
UK /ɡoʊ aʊt laɪk ə laɪt/
"go out like a light" picture

Idiom

1.

to fall asleep very quickly or suddenly

Example:
After working all day, he went out like a light as soon as his head hit the pillow.
The baby was so tired that she went out like a light during her feeding.
2.

to lose consciousness suddenly

Example:
The boxer took a heavy punch and went out like a light.
The sudden drop in blood pressure made her go out like a light.
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