WAGTAIL n.
la and several allied genera of the family Motacillidæ. They have the habit of constantly jerking their long tails up and down, whence the name. Field wagtail, any one of several species of wagtails of the genus Budytes having the tail shorter, the legs longer, and the hind claw longer and straighter, than do the water…
WHIP v.
To take or move by a sudden motion; to jerk; to snatch; -- with into, out, up, off, and the like. She, in a hurry, whips up her darling under her arm. L'Estrange. He whips out his pocketbook every moment, and writes descriptions of everything he sees. Walpole.