Stamp money
Stamp money (coll. For unemployment benefit) is an outdated slang term for unemployment benefit from the Weimar Republic to the Federal Republic of Germany .
The name comes from the stamps with which unemployed people from the 1920s had to confirm their visit to the employment office on a "stamp card" and were paid a certain amount of money. Sometimes the unemployed had to report to the stamp office (town hall, etc.) daily or at least several times a week . The expression “going stamping” was used in the past and is still used as a synonym for being unemployed today .
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Wiktionary: Stamp money - explanations of meanings, word origins, synonyms, translations