Good Old Boy Meaning

(idiomatic, chiefly Southern US, sometimes derogatory) A friendly, unambitious, relatively uneducated, sometimes racially biased white man who embodies the stereotype of the folksy culture of the rural southern USA.

Example: 1899, Stephen Crane, Active Service, ch. 5:
  "Billie, what kind of a lad is that young Coke up at Washurst?" He addressed an old college friend. . . .
  "He's one of those Ohio Cokes—regular thing—father millionaire—used to be a barber—good old boy."
1910, H. Rider Haggard, Queen Sheba's Ring, ch. 7:
  Tell these fellows to say to their Sultan that he is a good old boy, and that we thank him very much.
1973, "Quick Cuts" (film review), Time, 24 Sep.:
  "White Lightning" concerns a good old boy named Gator McKluskey (Burt Reynolds) who is serving time in the Arkansas pen for messing around with illegal liquor.