in one's hair
in one's hair {adj. phr.}, {informal}
Bothering you again and again; always annoying.
Johnny got in Father's hair when he was trying to read the paper by running and shouting.
The grown-ups sent the children out to play so that the children wouldn't be in their hair while they were talking.
Contrast: OUT OF ONE'S HAIR.
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Source: A Dictionary of American Idioms