Basically, an old pickerin' witch is an old woman who could aptly be called a haint because she is always making phone calls--usually to government agencies--to complain about people, neighbors, this, that, and the other. Sometimes at first, she will pretend to be nice to obtain secrets from people only to plot to use them for future complaints. She does this because it makes her feel that she is important or has power when she really doesn't. People usually get wise to her and quit communicating with her or dealing with her at all.
Somebody new in the neighborhood says, "I talked to that woman next door." Then they are told, "Don't mess with her because she likes to get people in trouble even when nothing wrong is happening. Yeah, she is an old pickerin' witch."
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.
Looking or experiencing something nice after witnessing something horrid like a disgusting gif or a disturbing video. Typically used as eye bleach are nice images of whatever makes the disturbed person happy.