1. A guy who never seems to get laid.
2. A guy whose ridiculous way of carrying himself insures that no women will associate with him or his friends.
Dude, why the hell did you tell Gary to meet us here? That guy is walking pussy repellant! I hope you didn't expect to talk to any chicks with him hanging around...
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".