good old boy[ōl]
good old boy definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
Informal a man of the S U.S., variously characterized as easygoing, companionable, assertively masculine, and strongly identifying with his regional lifestyle
good old boy definition by American Heritage Dictionary
also good ol' boy or good ole boynoun Slang
A man having qualities held to be characteristic of certain Southern white males, such as a relaxed or informal manner, strong loyalty to family and friends, and often an anti-intellectual bias and intolerant point of view.