The act of carrying all your books in your bookbag instead of switching them into your locker to save time in between classes. This can also be used to make sure you don't forget a book.
John: Woah! Dude what are you doing with all those books?
Bob: I'm carrying my locker. I forgot my math book in my locker twice last week and I'm not going to do it again. Plus, I need all the free time I can get in between classes so I can make out with Jennifer.
John: Dude, that has got to be unhealthy for your- Wait. You're making out with my sister?
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".