Meaning of “flap” - Learner’s Dictionary


verb us uk /flæp/ present participle flapping, past tense and past participle flapped

If a bird flaps its wings, it moves them up and down.

MOVE [ I ]

If something such as cloth or paper flaps, the side that is not fixed to something moves around, especially in the wind:

The curtains were flapping around in the breeze.
WORRY [ I ] informal

to become worried or excited about something:

Don't flap! We've got plenty of time to get to the airport.

(Definition of “flap verb” from the Cambridge Learner’s Dictionary © Cambridge University Press)