When an otherwise ladylike female subtly lifts one cheek in order to decompress air from her derrière. A skillful practitioner will couple this art with conversation or laughter as to dissuade any suspicion should the tuft of air carry an unpleasant odor.
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".