Synonym of run amok
In a frenzy of violence, or on a killing spree; berserk.
Out of control, especially when armed and dangerous.
The act of running amok.
One who runs amok; in Malay and Moro/Philippine culture, one who attempts to kill many others, especially expecting that they will be killed themselves.
To become aggressive and erratic, especially due to stress; specifically, to carry out a shooting spree at a workplace environment; also (more generally) to become very angry; to lose one's temper.