#1 twitch v. [jerk] make an uncontrolled, short, jerky motion; "his face is twitching". wn
#2 twitch v. [jerk] move with abrupt, seemingly uncontrolled motions; "The patient's legs were jerkings". wn
#3 twitch n. [twitching, vellication] a sudden muscle spasm; especially one caused by a nervous condition. wn
#4 twitch v. [flip] toss with a sharp movement so as to cause to turn over in the air. wn
#5 twitch v. [pinch, squeeze, twinge, tweet, nip] squeeze tightly between the fingers; "He pinched her behind"; "She squeezed the bottle". wn
vizzz