Since 'man' and 'woman' are exceptions to the usual way of forming these plurals (car seats, shoe stores), I would expect to hear 'woman friends' and 'man friends' along with 'girl friends' and 'boy friends', so they do not sound particularly strange to me. COCA produces a few examples: —Taylor says that as she has aged, she has developed a network of woman friends who help her cope with getting older. —If you're a black person, I find myself sometimes with other black woman friends , you know, putting down white women as if they are another species —convey to my friend when I said, in the playfully joshing manner that man friends tend to use with one another, " You mocked the French press —?
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