When a mechanic has no ability to troubleshoot a problem. Instead shoots the "parts cannon" at the problem. He ends up replacing every component in the system in hopes of fixing whatever was causing the problem. A complete waste of material and labor.
Customer: My breaks are squeaking.
Dumb Mechanic: You need new brake calipers, pads, rotors and wheel bearings. FIRE THE PARTS CANNON!
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.