flipper
flip.per \'flip-*r\ n 1a: a broad flat limb (as of a seal) adapted for swimming 1b: a flat rubber shoe with the front expanded into a paddle used in skin d iving 2: one that flips
flip.per \'flip-*r\ n 1a: a broad flat limb (as of a seal) adapted for swimming 1b: a flat rubber shoe with the front expanded into a paddle used in skin d iving 2: one that flips