(of a bird) move (its wings) up and down when flying or preparing to fly:a pheasant flapped its wings [no object]:gulls flapped around uttering their strange cries
[no object] (of something attached at one point or loosely fastened) flutter or wave around:the tent bent with the gale, and the corners flapped furiously
wave (something) around or at something or someone:she flapped the duster angrilyshe began flapping her arms to drive away the permeating cold
strike or attempt to strike (something) loosely with one’s hand, a cloth, or a broad implement, especially to drive it away.
1a piece of something thin, such as cloth, paper, or metal, hinged or attached only on one side, that covers an opening or hangs down from something:the flap of the envelopehe pushed through the tent flap
a hinged or sliding section of an aircraft wing used to control lift:flaps are normally moved by the hydraulicsa final approach at sixty knots with 45° of flap
a large broad mushroom.
Phonetics a type of consonant produced by allowing the tip of the tongue to strike the alveolar ridge very briefly.
2a movement of a wing or an arm from side to side or up and down:the surviving bird made a few final despairing flaps
[in singular] the sound of something making a flapping movement:hear the coo of the dove, the flap of its wings
3 [in singular] informal a state of agitation; a panic:they’re in a flap over who’s going to take Henry’s lectures