An extremely low first gear in a four-speedtruck transmission. It is used for climbing steep hills, for moving slowly over bad terrain, or for driving slowly.
We drove to the top of Mount Bross (14,172 feet) in granny gear.
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".