flapping
adjective / present participle of 'flap'UK /ˈflæp.ɪŋ/
US /ˈflæp.ɪŋ/
Moving up and down or side to side quickly, like a bird's wings.
The duck flew over the pond with its wings flapping.
OTHER MEANINGS
2. The sound or action of something moving loosely and quickly.
I heard the flapping of the flag in the wind.
3. Hanging loosely and moving about.
He wore a flapping coat that was too big for him.
4. In phonetics, a way of saying a sound where the tongue taps quickly.
The flapping of the 't' in 'butter' sounds like a soft 'd'.
5. Panicking or getting upset about something.
There was no need for all that flapping about the test.