An Irish tan occurs when a very pale-skinned Irish person gets too much sun, causing their skin to become even more red and uneven. An Irish tan is not a sunburn; turning red and splotchy is just how some very fair Irish-Americans tan.
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".