One of the mysteries of the English language finally explained.
Chiefly in the sense of "public school". A boy who attends a public school; a man who attended a public school as a boy, and who displays the characteristics associated with a public school education.
Mid 19th century; earliest use found in Catholic World. From public school + boy.
public school boy/ˌpʌblɪk ˈskuːl ˌbɔɪ/
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