Definition of "shamus" [shamus]

• Slang A police officer. (noun)
• Slang A private investigator. (noun)

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.

• "While investigating the murder of a treasure hunter found dead in a long-abandoned nightclub, seeking a piece of vintage diamond bling called the "Blue Butterfly" think "Maltese Falcon" as a priceless necklace, Castle discovers the 1947 diary of shamus Joe Flynn."
• "True shamus but all that means is that low interest rates make the cost of borrowing lower."
• "Posted September 27, 2004 11: 39 PM shamus writes:"