flapping

/ˈflæpɪŋ/
noun
  1. The motion of something that moves up and down or from side to side, especially wings or loose material.
    • The flag's constant flapping wore out the fabric.
    • The flapping of the bird's wings was loud in the quiet forest.
    • I could hear the flapping of the tent in the strong wind.
Synonyms
adjective
  1. Moving up and down or from side to side, especially loosely or noisily.
    • A flapping sail caught the wind and filled suddenly.
    • He wore a flapping coat that made him look like a scarecrow.
    • The flapping curtain kept distracting me while I was reading.
What does "flapping" mean? | whatsthatwordmean | whatsthatwordmean