amok vs off the deep end

amok

• 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. 

• In a frenzy of violence, or on a killing spree; berserk. 

• Out of control, especially when armed and dangerous. 

• Synonym of run amok 

off the deep end

• Crazy, erratic, or irrational. 

• Extremely angry.