referring to the "Legion" in the New Testament (a man possessed by many demons) this phrase is a short comeback when dealing with the obvious insanity of multiple sock-puppet accounts in forums and social media, letting the sock-puppets know that you're onto them and refusing to play their games.
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.