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one's luck is in
01
used to emphasize how lucky a person is or how successful they are
![{one's} luck [is] in definition and meaning](https://cdn.langeek.co/photo/17547/original/lucky?type=jpeg "{one's} luck [is] in definition and meaning")
Idiom
Informal
What is the origin of the idiom "one's luck is in" and when to use it?
The phrase "one's luck is in" is an informal idiomatic expression that signifies a period of good fortune or a favorable streak. The origin of this phrase is rooted in the notion that someone's luck has improved or is currently on the upswing. It is often used to describe a situation in which things are going well for an individual, typically in a casual or conversational context.
Examples
His luck is in; he found a parking spot right outside the restaurant.
