Meaning of the word flapping in English

What does flapping mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

flapping

US /ˈflæp.ɪŋ/
UK /ˈflæp.ɪŋ/

Adjective

moving up and down or from side to side with a light, quick motion

Example:
The bird's wings were flapping rapidly.
The loose tarp was flapping in the wind.