A giant, veiny, throbbing member. Usually at least 13 inches... In girth. Such phalluses are often deemed unsuitable for Intercourse with human women, and should therefore be used to pleasure only large land dwelling mammals (e.g. Elephants, hippopotamuses, robotic dinosaurs), or Ke$ha.
Someone who is addicted to obtaining money and building wealth. A money addict and fanatic. Breadheads often work more than one full-time job, and some even participate in illicit activities to "obtain the bread".