US /wer ðə ˈtraʊzɚz/
・UK /weə ðə ˈtraʊzəz/
Rachel Robnett, a researcher at the University of Nevada, surveyed a number of people in the US and UK and found that the husbands of women who keep their maiden names are viewed as feminine, while the women are believed to "wear the trousers." If you "wear the trousers" in a relationship, it means you have the control and make the decisions for both people.
'wear the trousers'.