Definition of old boy noun from the Oxford Advanced American Dictionary

 

old boy

 noun
noun
 
 
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Idioms
the old-boy network(informal)
 
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the practice of men who went to the same school using their influence to help each other at work or socially Recruiting staff used to be done by means of the old-boy network. see also good old boy
See the Oxford Advanced Learner's Dictionary entry: old boy