whis·tle·blow·er or whis·tle-blow·er or whistle blower (hwĭs'əl-blō'ər, wĭs'-) n. One who reveals wrongdoing within an organization to the public or to those in positions of authority: "The Pentagon's most famous whistleblower is . . . hoping to get another chance to search for government waste"(Washington Post). whis'tle-blow'ing n.
n. someone who calls a halt to something; an informer; an enforcer; a stool (pigeon). : I don't know who the whistle-blower was, but a good time was really ruined.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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