twitch
twitch
verb
To make a sudden, small, involuntary movement, often due to nervousness.
"His eye began to twitch nervously."
noun
A sudden, brief, involuntary muscular contraction or quick movement.
"She felt a small twitch in her eyelid."
Thesaurus
Synonyms: jerk, twitching, vellication, flip, tweet, squeeze, nip, twinge, pinch