so wait the saying "get that head get that bread and leave" refers to getting stimulation to the male reproductive organ using the oral cavity usually to reach climax most refer to as "cumming" and then proceed to collect "bread" or the currency used in that place in the world that usually holds value in the stuff you are able to acquire with it, and then proceed to leave the (usually other sex) partner for an undisclosed reason.
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".