Flap, v. t. [imp. & p. p. Flapped p. pr. & vb. n. Flapping ]
 1. To beat with a flap; to strike.
    Yet let me flap this bug with gilded wings.   --Pope.
 2. To move, as something broad and flaplike; as, to flap the wings; to let fall, as the brim of a hat.
 To flap in the mouth, to taunt. [Obs.]


 flap
      n 1: any broad thin and limber covering attached at one edge;
           hangs loose or projects freely; "he wrote on the flap of
           the envelope"
      2: an excited state of agitation; "he was in a dither"; "there
         was a terrible flap about the theft" [syn: dither, pother,
          fuss, tizzy]
      3: the motion made by flapping up and down [syn: flapping, flutter,
          fluttering]
      4: a movable piece of tissue partly connected to the body
      5: a movable airfoil that is part of an aircraft wing; used to
         increase lift or drag [syn: flaps]
      v 1: move in a wavy pattern or with a rising and falling motion;
           "The curtains undulated"; "the waves rolled towards the
           beach" [syn: roll, undulate, wave]
      2: move noisily; "flags flapped in the strong wind"
      3: move with a thrashing motion; "The bird flapped its wings";
         "The eagle beat its wings and soared high into the sky"
         [syn: beat]
      4: move with a flapping motion; "The bird's wings were
         flapping" [syn: beat]
      5: make a fuss; be agitated [syn: dither, pother]
      6: pronounce with a flap, of alveolar sounds
      [also: flapping, flapped]


 flapping
      n : the motion made by flapping up and down [syn: flap, flutter,
           fluttering]


 flapping
      See flap