Noah Webster
Flounce
FLOUNCE, verb intransitive flouns. [See Flounder.]
1. 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.
You neither fume, not fret, not flounce
2. To move with jerks or agitation.
FLOUNCE, verb transitive To deck with a flounce; as, to flounce a petticoat or frock.
FLOUNCE, noun A narrow piece of cloth sewed to a petticoat, frock or gown, with the lower border loose and spreading. The present is the age of flounces. 1827.