good old boy also good ol’ boy or good ole boy (?l)n. 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.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.good? old` (or ol’` or ole`) boy? (o?l) n. 1. a man embodying the unsophisticated good fellowship and sometimes boisterous sociability regarded as characteristic of white males of the Southern U.S. 2. a person, esp. a man, belonging to a network of friends and associates with close ties of loyalty. [1970?75] good? old` boy?ism, n. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.