1) AA fire 2) Anti-aircraft shells 3) Antiaircraft fire 4) Autobot 5) Bad press 6) Bane of bombers 7) Clamorous criticism 8) Critical words 9) Criticism 10) Criticism, so to speak 11) Dissension 12) Eggs from down under 13) Everyday German military term 14) Familiar German military term 15) Flack 16) Flack catcher 1) Flack 2) Insult 3) Static 
[Transformers] Flak is a fictional character from the various Transformers universes. ==Transformers: Generation 1== Flak is a Micromaster. He is a tactical expert who works for Big Shot. Oddly he is also a full-sized Autobot who works for Thunderclash. ===Marvel Comics=== Events from the Marvel U.K. Transformers series are in italics. When...
Fliegerabwehrkanone, Flug(zeug)abwehrkanone 
Term used to describe anti-aircraft fire.
Term used by Allied troops and airmen in World War II to describe anti-aircraft fire from the German abbreviation for Flugzeugabwehrkanone-`aircraft attack gun`. A flak jacket was an...
criticism/anti-aircraft guns 
Fliegerabwehrkanonen (anti-aircraft artillery), term for German anti-aircraft fire
Flak is slang for criticism, antagonism, aggression.
Listing of anti-aircraft weapons utilising the Flak designation
antiaircraft fire, esp. as experienced by the crews of combat airplanes at which the fire is directed. · criticism; hostile reaction; abuse: Such an unpopular decision is bound to draw a lot of flak from the press.