What is Kreiler?
1.
1)
Used to express envy towards a person whom perhaps have won something out of pure luck.
2)
Also used to define a merchant or buisnessman who is trying to buy cheap and sell high in a quite stuborn way.
1)
"Man, that's so kreil!"
or just "Kreil.."
2)
"You are a damn kreiler, you know that?!"
or as a mild curseword; "Kreiler!"
See