Definition of "hail-fellow" [hail•-fel•low]

• Heartily friendly and congenial. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The very lack now of hail-fellow chumminess is, frankly, very odd."
• "There was none of the usual hail-fellow cordiality that I had encountered in my previous meetings with politicians."
• "I met their gazes and tried to shoot a casual hail-fellow kind of look."