"Lake No Negro" is a derisive nickname given to the city of Lake Oswego, Oregon by some Portland Metro residents. It refers to a suburb of Portland, Oregon, which (by assumption) has no black people. Not wholly true, but almost.
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.