A nickname that refers to sluttiness, but is actually used as a pet name by college girls to refer to one another. It probably started out as a joke, then became a tongue in cheek term of endearment.
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".
I don't buy the schmegegge about Morty sleeping with Moira.
His version of the story was pure schmegegge.
The whole schmegegge was made up to get Liz a little bit of attention.