to pull with a sudden jerk; to pluck with a short, quick motion; to snatch; as, to twitch one by the sleeve; to twitch a thing out of another's hand; to twitch off clusters of grapes.-the act of twitching; a pull with a jerk; a short, sudden, quick pull; as, a twitch by the sleeve.-a short, spastic contraction of the fibers or muscles; a simple muscular contraction; as, convulsive twitches; a twitch in the side.-a stick with a hole in one end through which passes a loop, which can be drawn tightly over the upper lip or an ear of a horse. by twisting the stick the compression is made sufficiently painful to keep the animal quiet during a slight surgical operation.