'Jacking up' is the state in which a person/hobo/fugitive finds himself somehow getting involved with injecting heroin, a really bad drug, also a really stupid way of ingesting a drug. 'Jacking up' is sometimes referred to as 'stabbin' da veins'
Jalentine posted a photo of himself 'jacking up' which means he is a real badboy and he also got a tattoo and now he is fell over because he did too muchheroin.
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.