"Look at that walking penis over there. Look, he's now riding a bike! He's coming towards us and...Oh, wait, that isn't a penis, that's Donald Trump. Woops, they just look very similar"
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".