People who walk while constantly texting- head down, can't see where they're going. At a greater risk of walking into things, like moving cars and closed doors.
Hey, did you just see that textlemming walk right into that street lamp?
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".