The act of failing in an extremely fast and/or consitant manner. Commonly used on internet forums and online gaming to describe noobs or bads.
Player 1: God damnit! I'm always the first one to die on our team!!!
Player 2: Maybe if you wouldn't turbofail we'd be winning.
Forumer 1: OMG look at my hawt sister.
Forumer 2: Turbofail.