Source : WordNet®

flak
     n 1: a slick spokesperson who can turn any criticism to the
          advantage of their employer [syn: {flak catcher}, {flack
          catcher}, {flack}]
     2: intense adverse criticism; "Clinton directed his fire at the
        Republican Party"; "the government has come under attack";
        "don't give me any flak" [syn: {fire}, {attack}, {flack},
        {blast}]
     3: artillery designed to shoot upward at airplanes [syn: {antiaircraft},
         {antiaircraft gun}, {flack}, {pom-pom}, {ack-ack}, {ack-ack
        gun}]