A person that listens to mainly modern industrial music and electronica and is associated with the goth/industrial scene. Generally rivitheads are found at goth/industrial clubs. They tend to wear their hair in extreme styles like spikes, a mohawk or military cut. They also generally dress in a military fashion and have a penchant for body modification.
Joe has become such a rivithead, he won't listen to anything other than industrial any more!
Someone into the Industrial scene, with a fuck all attitude. Not to be mistaken for punk or goth and if called one will promptly kick your ass. Defined by their fashion, attitude, and the music they listen to.
After getting into the scene he became a Rivithead and changed his life forever.