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
If you flounce somewhere, you walk there quickly with exaggerated movements, in a way that shows you are annoyed or upset. She flounced out of my room in a huff She will flounce and argue when asked to leave the room
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
A flounce is a piece of cloth that has been sewn into folds and put around the edge of something, for example a skirt, dress, tablecloth, or curtain. a gown with a flounce round the hem. = frill. To trim with a strip or strips of gathered or pleated material. to walk in a quick determined way without looking at people because you are angry (Probably from a language)