good old boy vs mandem

good old boy

noun
  • A male friend or chum, especially a schoolmate; a man with an established network of friends who assist one another in social and business situations; a decent, dependable fellow. 

  • A friendly, unambitious, relatively uneducated, sometimes racially biased or misogynistic white man who embodies the stereotype of the folksy culture of the rural southern USA. 

mandem

noun
  • group of men or boys; male friends 

How often have the words good old boy and mandem occurred in a corpus of books? (source: Google Ngram Viewer )