good old boy

noun2

1. •
   A male friend, especially a childhood friend; a man with an established network of friends who assist one another in social and business situations; a decent, dependable fellow.

   • Tell these fellows to say to their Sultan that he is a good old boy, and that we thank him very much. — 1910
2. •
   A white man who embodies the culture stereotypically associated with the Southern US, such as bias against nonwhite people, and other conservative (usually Christian) attitudes.

   • "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. — 1973