flounce

Concise Oxford English Dictionary © 2008 Oxford University Press:
flounce1

▶verb move in an exaggeratedly impatient or angry manner. ▶noun an exaggerated action expressing annoyance or impatience.

– origin C16: perh. of Scand. origin and rel. to Norw. flunsa ‘hurry’, or perh. symbolic, like bounce or pounce.

Concise Oxford English Dictionary © 2008 Oxford University Press:
flounce2

▶noun a wide ornamental strip of material gathered and sewn to a skirt or dress; a frill.

– derivatives
flounced adjective,
flouncy adjective.

– origin C18: from an alt. of obs. frounce ‘a fold or pleat’, from OFr. fronce.