A person who you don't normally associate with except for on weekends. Also a person who you don't normally associate with unless they have something to offer.
Girl #1: "I don't have any money for the bar this weekend..."
Girl #2 "OH! Call up your weekend friend, she'll foot the bill!"
Girl #1: "Good idea!"
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.