(1):
(n.) 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.
(2):
(v. t.) To deck with a flounce or flounces; as, to flounce a petticoat or a frock.
(3):
(v. i.) 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.
(4):
(n.) The act of floucing; a sudden, jerking motion of the body.