actually, inability to stay motionless. an effect of particular psychiatric medications that may be a mild feeling of disquiet or anxiety (which might be quickly over looked) to an overall total incapacity to stay nonetheless, followed by overwhelming anxiety, malaise, and serious dysphoria (manifesting as an almost indescribable feeling of horror and doom). - wikipediaOften accompanied by dyskinesia, or tremor.Contrary to another meaning, its treatable. 1. A state of being which is oftentimes times due to neuroleptic drugs with signs including agitation, intense restlessness and a kind of detached physical pain which can be torturous. 2. A hell which is rarely visited and hardly ever escaped.