The kind of forehead that few people have because most people have small-ass foreheads. People who have them are often made fun of by dense failures of society who have nothing better to do with their free time and refuse to see their own (obvious) flaws.
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".