1) Casually slip out of social engagements, in such a way that one's host does not even notice.
2) Casually loiter near the head of the buffet line, waiting for the signal for guests to begin serving themselves, in order to be able to be the first to eat (derived from (1): the better to be able to slip away quickly.)
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.