Meaning of "good ol' boy"

good old boy

ōl

good boy

also good ol 'boy or good ole boy (ōl)
n. Slang
A man who has qualities that are considered characteristic of certain southern white men, such as a relaxed or casual way, a strong loyalty to the family and friends, and often an anti-intellectual bias and an intolerant point of view.

good ol' boy

good ol 'boy

n
a. a man considered to be trustworthy and reliable because of his ordinary and practical education and training
b. ( as a modifier ): was expected to bring some informality from a good guy to the White House .