Hayaween (or Hayoona..) is a nickname for the arabic girls name Haya (that has an awesome meaning!) it might not make sense as the nickname is longer than the actual name but its actually said instead of things like "haya honey..haya darling..".
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.