It means you bought or traded something and unintentionally received more product(s) than what you paid or traded for. That additional product(s) was therefore “Free” however there was a transaction of money, goods, or services required to receive the free item therefore it was “on the cheap.”
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.