On an episode of the television show, Newsradio, the resident fool (Matthew) is given a drink that makes him smart. He takes on the new persona of Smatthew, meaning Smart Matthew.
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.