Man: "I swear, my left arm is strong, but it doesn't look like it compared to my right."
Man 2: "How often do you beat the meat? Sounds like a case of Muscle Jerkitis."
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".