Telling someone to seriously fuck off. Don't just go suck a dick, but suck a fat dick. Especially if it's a weak or lame thing that the guy did.
-- Hey man, I took some money off your dresser. Then a bunch of dudes at the bar talked me into buying rounds. I'll pay you back though, as soon as I get my next paycheck.
When something really bad happens. Comes from suck and in this case it is sucking something big and fat. Used in the worst of situations when not much else can be said.
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".