emo-twitch

The movement that somebody with a side-fringe has to make to get the hair out of their eye. A side-fringe is a common characteristic of a so-called 'emo'.

An emo twitch is the convulsion of a shaggy haired kid. When your emo bangs get in your eyes or are too far over for your bang-limitation, you swing your head to the side, causing the hair to flip over and get out of your eyes. The hair often will fall down again, causing another convulsion.
Injuries include cramped necks, an emo twitch OCD, or terrible music-listening to-ness*.
(*"Emo" music; It sucks penis.)