To deck with flounces: as, to flounce a petticoat or a gown.
To surround with something arranged like a flounce.
noun.
In saddlery, a covering for a pistol-holster, either of leather or bearskin.
noun.
A deep ruffle; a strip of any material used to decorate a garment, especially a skirt near the bottom, gathered or plaited at one edge, and loose and floating at the other, the gathered edge being sewed to the garment.
To make abrupt or agitated movements with the limbs and body; turn or twist as with sudden petulance or impatience; move with flings or turns, as if in displeasure or annoyance: as, to flounce out of a room.
noun.
A sudden fling or turn, as of the body.