Originally Persian. Literally means a person whose brain is a pussy, Kos (pussy) Maghz (brain).
It is used for a person who does stupid things or have stupid thoughts. Equals "dick-head" in English.
I can't believe you're gonna swim in that lake full ofcrocodiles. You're such a Kosmaghz.
Hey Kosmaghz, nobody adds salt to his coffee like how you do!
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.