This phrase is commonly used in response to some one who suspiciously claims claims they have done it all and seen before you. When in reality they probably haven't.
You-"Today I saw the most amazing thing in my life! it was this cage fight between a rabbit against this massive raptor!"
Group-"OOOOOOOOHHH AAAAAHHH"
Some person-"Oh I have seen that a thousand times before!"
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".