Out like a light
Out like a light : Phrases
Fast asleep; suddenly unconscious.
After a 12-hour shift, nurse Trudy came home and she was out like a light in no time at all.
In the American 20th century, when the wonders of electricity spread across the land, people could turn on and shut off lights with just a flick of a switch. By the middle of the century, out like a light was a way of saying that a person had fallen asleep very quickly.
Out to HOME PAGE