Sort of like "you do you," but with a strong implication that you're talking out of your ass. Basically "you're an idiot and what you're saying is stupid, if you want to keep going I guess I won't stop you."
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".