twitching (Noun) — A sudden muscle spasm; especially one caused by a nervous condition. ex. "his face is twitching"
twitching (Verb) — Make an uncontrolled, short, jerky motion. ex. "his face is twitching"
twitching (Verb) — Move with abrupt, seemingly uncontrolled motions.
twitching (Verb) — Toss with a sharp movement so as to cause to turn over in the air.
twitching (Verb) — Press tightly between the fingers. ex. "He twitched her behind"
twitching (Verb) — Move or pull with a sudden motion.