1938, from Ger. Flak, acronym for Fliegerabwehrkanone "airplane defense cannon." Sense of "anti-aircraft fire" is 1940; metaphoric sense of "criticism" is c.1963 in Amer.Eng.
n. complaints; criticism; negative feedback. (Originally referred to antiaircraft guns and the explosions and damage they caused. The first form is an initialism from German Fliegerabwehrkanonen = flyer defense cannons. I.e., the initial fl plus the first a plus the k.) : Why do I have to get all the flak for what you did?
n. publicity; hype. : Who is going to believe this flack about being first-rate?
n. a public relations agent or officer. : The flak made an announcement and then disappeared.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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Example sentences
The storied unit caught flak repeatedly during some of the toughest missions of the war.
He has dodged obstacles, braved the flak, and kept his eye on his goals.
Drug companies take a lot of flak for spending as much as they do on marketing and advertising.
Plans to internationalize the airline industry run into flak.
Unlike three decades ago, though, this time round technology received considerable flak for fuelling them.
Carter's missed shot was overshadowed only by something for which he received even more flak.
Armed police in flak vests surged into her apartment.
The plane was still flying through a stream of flak as he reasoned it out.
He gets flak for his collection of plaid golf pants, which he makes friends wear when they lose wagers.
To be a president, they agreed, you need a fair amount of confidence and you have to be comfortable taking flak.