It means just Oof, but, Oof my dude. But, meme. It's not very popularized, but it can be used by a select group of intellectuals. So, make this a commonphrase.
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".