If something, especially a part of your body, twitches or if you twitch it, it makes a little jumping movement. When I stood up to her, her right cheek would begin to twitch Stern twitched his shoulders. Twitch is also a noun. He developed a nervous twitch and began to blink constantly
a sudden muscle spasm; especially one caused by a nervous condition make an uncontrolled, short, jerky motion; "his face is twitching" move or pull with a sudden motion
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
Any of several devices used to apply pressure to a horse's upper lip This is used as a form of acupressure or distraction to calm and immobilize the animal The use of a twitch produces widely varying results on individual horses These range from semiconsciousness to rage Twitches are sometimes applied to the horse's ear