There are two very different definitions here.

1.) A man or older boy from the South, in this case the stereotypical redneck or hick. Likes cheap beer, NASCAR, football, pro wrestling, hunting and/or fishing, and country or hard rock music. Not necessarily a bad person, but occasionally portrayed as racist, though many could care less, aside from occasionally cracking a racist joke with his buddies; this is not usually how he feels about Blacks or Hispanics. Generally all about having a good time. They may speed to impress a girl they're taking on a date, but won't hit-and-run; they may have a few beers to impress her at the bar later on, or even get in a fight there, but won't get so drunk he can't sober up and drive or send the other guy to the hospital. Generally speaks with a country accent or Southern drawl, usually the former. Often drives a rusty muscle car or pickup, but at the same time many seem to drive small Japanese cars. A good example of this type would be the Duke boys from the TV series and movie, The Dukes of Hazzard. Often portrayed negatively, but not always a bad person. Again, they are pretty good-natured.

2.) This definition is still a man from the South, however, he is usually upper-middle class, rather "preppy," lives in an "old-money" suburb, and will generally have a degree from a prestigious Southern college (Washington and Lee, Vanderbilt, UVa, Wake Forest, etc.) or an Ivy League school. Usually enjoys watching his (parents') alma mater or current college play football and basketball. Usually speaks in a soft Southern drawl, not very pronounced but easily detectable (y'all, "ah," "prob'em" are common) Often will exude an air of class, but not always in a snobby or condescending manner. Often seen wearing nice clothes like collared shirts, khakis, and Topsiders, and for high school will often attend a private day school or a boarding school like Woodberry Forest, but many go to a prestigious public high school like Douglas Freeman in Richmond or Mountain Brook in Birmingham as well. Basically, take the definition of a New England "preppy," put him in a TRUE Southern city, take away the perceived snobbery, and you have this kind of man.
1.) Nelson was considered by his Northern co-workers in the shop of the car dealer to be a redneck, and in many ways fit the definition, but he was in no way a bigot or rude person. In fact, he was friends with many Blacks and didn't mind their company one bit. He was also a rather skilled mechanic and ran the shop well, and his mother said he was "such a good ol' boy."

2.) Andy grew up in the West End section of Richmond and dressed much like his old-money counterparts in New England. He went to St. Christopher's for high school, staying close to home, and decided to travel down to Emory for college, joining a fraternity. He came back up to Virginia to get a business degree at UVa and now is a partner in a well-known Richmond accounting firm. He originally planned to stay in Atlanta, but he noticed the Northern transplants didn't like his accent, and the "good ol' boy network" was being phased out by said transplants.
by Will, a good ol' boy May 22, 2006
Get the good ol' boy mug.
A Southern born boy who is country to the core. He likes to hunt and could not be prouder of his gun collection. He carries one knife in his pocket and another in his boot, in case the one in his pocket gets confiscated. Usually drives a truck and listens to country. A hard working, honest gentleman, who prefers the simple life and is just looking for a girl he can take shootin'.
"On our first date he showed me a picture of him pulling a bullet out of a deer's heart. He said he keeps it on his desk."
"Oh, you got yourself a good ol' boy! They're the best!"
by nurseawesome August 23, 2013
Get the good ol' boy mug.
"Stan, you're in Ala-fuckin'-bama. You killed a good ol' boy. There's no fuckin' way this thing ain't goin' to trial."
-Joe Pesci, My Cousin Vinny
by Anonymous July 29, 2003
Get the good ol' boy mug.
A young, white, Southern male.

Usually the trouble-making, rebellious son of a redneck, between the ages of about 18-35.
Women are sometimes over looked in that company, because the managemnet prefers the good ol' boys.
by J_Leigh June 25, 2007
Get the good ol' boy mug.
An ignorant southern white guy who can say and do virtually anything and still be viewed positively.
His prejudiced behavior was downplayed as just a "good ol' boy kidding around."
by qbdkusoemv December 10, 2015
Get the good ol' boy mug.
no such thing. a white trash republican redneck that tries to one up everybody with a pompous backwoods cocky attitude. A loud drunk and obnoxious country hic without class. All good ol' boy types aren't really good boys at all.
Good ol' boys are annoying trailer meth addicts.
by eazy-x February 1, 2008
Get the good ol' boy mug.
A good ole boy is a southern white male that has manners and belives in traditional values. NOT the same as a redneck, hick, or hillbilly. If you believe otherwise than you're probably a yankee.
by JCMoney May 4, 2004
Get the GOOD OL` BOY mug.