Abbreviation for the phrase "goddamn, shit the bed!", most notably used in Tool's progressive metal song "Rosetta Stoned". This abbreviation is uttered when the speaker has suffered a shocking or traumatizing experience, and wishes to express his emotion comparable to soiling one's self.
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".