A guy who thinks he is laid back and cool. Loves doing the worm on his bed and making retarded noises while do so. Also says he is good at video games but really sucks!
A progression of the nickname Wullie, often the nickname is a natural follow on from wullie to wullster in later years of ones life. Many nicknames find the "ster" tag added as we grow up.
As a boy we called him wullie but at some point around the drinking and shagging part of our lives it changed to wullster.
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.