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to not know what hit somebody
01
to become extremely shocked or confused as a result of something undesirable that suddenly happens
![to {not} [know] what [hit] {sb} definition and meaning](https://cdn.langeek.co/photo/46310/original/?type=jpeg "to {not} [know] what [hit] {sb} definition and meaning")
Idiom
InformalWhat is the origin of the idiom "not know what hit someone" and when to use it?
The expression "not know what hit someone" is an idiom that means to be completely surprised, shocked, or overwhelmed by an unexpected event or situation. This phrase is often used to describe situations where something unexpected happens suddenly and leaves an individual disoriented or bewildered.
Examples
A sinfully attractive man who knows what he wants, Rafael seduces Cherri before she knows what hits her.
When the company announced layoffs, some employees did n't know what hit them.
