Motions that are sudden, involuntary, sharp movements in response to agitation or stimulation. See [[flinch]] for similar motions in response to surprise or shock.

Use for momentary motions, not for sustained motions like shivering or [[trembling]].
Denoted by jagged [[motion lines]].

For the website, see [[twitch.tv|Twitch]].

h4. Specific Tags
[[twitching bulge]]
[[twitching penis]]
[[twitching pussy]]
[[twitching testicles]]

h4. See also
* [[flinch]]
* [[shaking]]
* [[trembling]]

h4. External Definition

"The Free Dictionary":[https://medical-dictionary.thefreedictionary.com/twitch]
痙攣