to throw the limbs and body one way and the other; to spring, turn, or twist with sudden effort or violence; to struggle, as a horse in mire; to flounder; to throw one's self with a jerk or spasm, often as in displeasure.-the act of floucing; a sudden, jerking motion of the body.-an ornamental appendage to the skirt of a woman's dress, consisting of a strip gathered and sewed on by its upper edge around the skirt, and left hanging.-to deck with a flounce or flounces; as, to flounce a petticoat or a frock.