Cách sử dụng
The word "flail" means to wave or swing wildly. You might use it to describe the movement of a person's arms or legs, or the movement of a whip. For example, if someone is trying to hit a bug with a newspaper and they're waving the newspaper around wildly, you could say they are flailing the newspaper. It's often used to describe a movement that is uncontrolled or out of balance.