Used as a way of saying something or someone is stupid, ridiculous, and gay. A form of replacing the word that's gay. When someone says "that's boss" they are referring to something or someone that they do not like
Paul: hey bernard!
Bernard: hey paul Paul: whatchu doing?
Bernard: doing some Chemistry homework.
Paul: oh, that's boss dude.
Bernard: yea I know, it's so boss.
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".