1. a friend who is being a bitch, used in a playful manner, because if you use it seriously...you seem like an dumb ass.
2. a person who is being extremely flirty while appearing to have unclean body parts.
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".