1. an asshole
2. Patrick, a character from the show Spongebob Squarepants that lives in Bikini Bottom and wears green and blue swim trunks on a regular basis. (Highly suspect connection to definition number one... maybe a joke being played on parents who let their kids watch this show?)
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".