Definition of public school boy in English:

public school boy

Pronunciation /ˌpʌblɪk ˈskuːl ˌbɔɪ/

noun

  • 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.

Origin

Mid 19th century; earliest use found in Catholic World. From public school + boy.