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old boy

old boynoun
pluralold boys
old boy
pluralold boys
Learner's definition of OLD BOY  
chiefly British 
orOld Boy
: a person who went to a respected or well-known private school for boys
— compare old girl
chiefly British, informal : an old man

old boy network

usually disapprovingalsoold boys' network
: an informal system in which wealthy men with the same social and educational background help each other
— see also good old boy
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