flounce (flounces plural & 3rd person present) (flouncing present participle) (flounced past tense & past participle )
1 verb 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... V adv/prep
She will flounce and argue when asked to leave the room. V
2 n-count 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.
(=frill)
...a gown with a flounce round the hem.