'Ripshit' is used as a verb, and to convey emotions of extreme anger. Once someone actually goes ripshit, however, they are usually past the capacity for speech.
When someone is really pounding the shit out of another dude, they can be said to have gone 'ripshit.'
"I'm going to go ripshit if (name) doesn't (pay me back/burn me that CD/stop sleeping with my girlfriend in my bed)
"Someone stole my weed from the gym locker. I'm so fucking ripshit."