a Watermelon Fucker is a dude who well.. Puts a hole in a watermelon and fucks it. These type of people are actually not that common and are mostly used in Packing ( another way for saying Argument ) and just calling someone a name in general.
1: Ewwwwwwww you are such a watermelonfucker 2: No im not!
1: Yes you are!
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.