godan verb (-ku), intransitive verb
Describes a small, involuntary, repetitive muscle movement, often around the eye or mouth. Similar to ひくひく, but ひくつく can imply a slightly stronger or more persistent twitching.
See also: ひくひく
緊張でまぶたがひくついた。
My eyelid twitched from nervousness.
疲
When I'm tired, the corner of my mouth sometimes twitches.