college-age kids who aren't yet mentally capable of making adult decisions. Similar to the usage of the word "tween" to refer to pre-teens.
That boy is the typical adultager... always broke and asking his parents for money; always has an excuse for his poor behavior; never gets his shit turned in on time without someone holding his hand; doesn't know how to take care of his own business.
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.