'This is your brain on drugs!!?' bong in butt

[failedsystem]

a good ten years ago iwas watching a program in britain that showcase some of the weird films that you couldnt get in normal videostores, one movie in particular had a scene where a girl brings a guy back to her apartment and starts feedin him up on drugs, once truly fecked she then proceeds to cut open his head, takes out his brain and puts it on a heated frying pan pouring large amounts of coke onto it screaming 'This is your brain on drugs' she then bends him over, smokes a bong and then sticks the bong in his ass and pours the bong water into him. I never caught the name of this film, unfortunately. can anyone help?

[retrorussell]

Sounds like Troma's TERROR FIRMER.  Good flick.
http://www.imdb.com/title/tt0169299/