(1):

(n.) A tool used in crimping boot fronts.

(2):

(v. i.) To fling the limbs and body, as in making efforts to move; to struggle, as a horse in the mire, or as a fish on land; to roll, toss, and tumble; to flounce.

(3):

(n.) The act of floundering.

(4):

(n.) A flatfish of the family Pleuronectidae, of many species.