n. the termination of a recitation; the punch line of a joke; a zinger. (The equivalent of a button punched to signal a response.) : When I got to the button, I realized that I had told the whole joke wrong.
n. a police officer's badge or shield. : The guy flashed his button, so I let him in.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw-Hill Education.
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