wear the trousers
wear the trousers or wear the pants {v. phr.}, {informal}
To have a man's authority; be the boss of a family or household.
Mr. Wilson is henpecked by his wife; she wears the trousers in that family.
Mrs. Jones talks a lot but Mr. Jones wears the pants in their house.
Compare: RULE THE ROOST.
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Source: A Dictionary of American Idioms