It is a German term meaning "low-earner". It basically describes a person that has a usually simple job that does not pay well or is basically poor. Since around 2019 the term has been developed into an insult towards people who don't have money. You may use it towards a person because of a specific situation, in which a person shows behavior of having a low income, or you use it to describe one's general life situation. It is usually meant in a funny way but may also deeply insult a person.
*two friends want to buy beer: Friend 1: "I don't have enough money on me right now so I will only buy the cheap brand like Karlskrone." Friend 2: "Hahah Geringverdiener!"
*guy with a Porsche is annoyed by a cyclist in front of him: Guy: (honking and overtaking him): "out of the way Geringverdiener"
Geringverdiener is a German word, which main meaning is a person, who doesn’t have a lot of money. After a News Broadcast (Tagesschau) made a social media post about Germanys Youth Word 2021 which went viral, it basically became a meme.
He's such a Geringverdiener!
or
German sentence: Jetzt mach doch nicht auf Geringverdiener!
Fogey/fogy /fougi/ sl. (early 18C+, orig. Scot) old-fashioned, stuck-in-the mud.
Person with old fashioned ideas which he is unwilling to change: Come to the disco and stop being such an old fogey!
You think me an old fogeyand an old tory, his thoughtful voice said. I saw three generations since O’Connel’s time. I remember the famine. Do you know that the orange lodges agitated for repeal of the union twenty years before O’Connel did or before the prelates of your communion denounced him as a demagogue? You fenians forget some things. (James Joyce, Ulysses. Penguin Books,1992. p. 38)