Definition of "old boy" []

• Chiefly British A graduate of a public school for boys. (noun)
• A man who is a member of an old-boy network. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "He won election to the board of the Council on Foreign Relations by exploiting a new nomination-by-petition procedure designed to open up that old boy organizationone that had been recommended, interestingly, by a Council committee headed by Cyrus Vance."
• "Except for the old boy at Pont-Marie, no one remembers him."
• "I had personally asked a fair number of Ivan's friends and business people to turn up at Park Crescent even if they couldn't face the crematorium but, in the event, the old boy drew a full house at Cockfosters, an eloquent and moving tribute to a good man."