A shaken man-tini is a sexual act, named after the alcoholic drink, the martini. It involves emptying the contents of a ballpoint pin and inserting opposite ends into the urethras of two penises until the glans (or heads) of the penises are touching, at which point the males begin to alternate ejaculations, forcing an ever-growing mass of semen back and forth between the penises.
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".