in someone's hair

Idioms  

1. Annoying or bothering someone. For example, She was constantly in my hair, overseeing everything I did, or Dad was working on taxes, and the children were getting in his hair. This expression alludes to entangling one's hair. [Mid-1800s] The antonym, out of someone's hair, is often used as an imperative, as in Get out of my hair! [c. 1900]

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Example Sentences

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in someone's hair

A hand placed on someone’s chest, or in someone’s hair, might signal either invitation or rejection.

From Washington Post ● Jun. 17, 2016