GNU Collaborative International Dictionary of English

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1.       
   Flap, v. t. [imp. & p. p. Flapped (?); p. pr. & vb. n. Flapping (?).] [Prob. of imitative origin; cf. D. flappen, E. flap, n., flop, flippant, fillip.]
   1. To beat with a flap; to strike.
   
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   Yet let me flap this bug with gilded wings. Pope.
   
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   2. To move, as something broad and flaplike; as, “to flap the wings”; to let fall, as the brim of a hat.
   
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   To flap in the mouth, to taunt. [Obs.]  W. Cartwright.
   
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