Usage:Flap of his overcoat was trailing on the ground.
The flap of the curtain was moving with the wind.
Usage:He was quite flapped at his first appearance at the show.
Usage:Flaps are lowered to reduce the speed of the aircraft.
Usage:He got in a real flap when he was not considered for promotion.
Usage:Please flap the insect with this book.
Usage:She is considered a flapper in her circle.