An activity or phenomena that many young males go out of their way to achieve in order to obtain emotional equilibrium and relieve either boredom or sadness. It is often achieved through the use of video games such as "Call of Duty" since the physical act of killing someone or something is often frowned upon. The act of "killing some shit" may also be used therapeutically.

An exclamation made when your friends or family are teasing you to a point where you can't handle it anymore and a hissy fit is in order.

Derived from a YouTube user's famed outburst following Britney's lackluster performance at the 2007 VMA's.