Piss. Originating from the fact that actual German beer just tastes like someone pissed in some fizzy water, also the stereotype of piss in German sex/porn. Can also be used as another term for a golden shower.
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".