A person that simply cannot be happy for another person's success. So rather than be happy they make a point of exposing a flaw in that person.
Muhareb, the result of being a Hater, is not exactly jealousy. The Muhareb doesnt really want to be the person he or she hates, rather the Muhareb wants to knock somelse down a notch.
Susan: You know, Kevin from accounting is doing very well. He just bought a house in a very nice part of town.
Mike (Muhareb): If he is doing so well why does he drive that '89 Taurus?
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.