I am sending this post from Berlin. I have learnt a number of new German words and expressions while I've been here. Before this week I would have said "arbeitslos" for "unemployed", but I have come across a new (for me) expression, namely Hartz IV (or Hartz 4), which is used to mean "unemployed" or "unemployment". Apparently people say things like "Mein Vater ist Hartz IV" (my father is unemployed).
Peter Hartz was an adviser to former Chancellor Schröder, and a top businessman. He devised a series of reforms to do with unemployment benefits, called the Hartz-Konzept. There have been various 'incarnations' or 'amendments' to the original idea, and so far the 'concept' is up to number 4, hence the number 4 in the expression. Herr Hartz later suffered a severe fall from grace (see this BBC article).
I've been trying to think off the top of my head of similar expressions in English, ie those containing the name of a politician. I can think of the modern "Boris bikes" ie the bicycles parked all over London which can be hired by the hour. They are named after current London mayor Boris Johnson, who introduced the scheme. The term "Baker day" is sometimes still used in schools, I think. Kenneth Baker was Margaret Thatcher's education minister in the 1980s, when he introduced in-service training days for teachers, which were soon dubbed "Baker days". Then there were the Bevin boys, young men conscripted during the Second World War who were sent to work in the mines. They were named after the wartime Labour minister Ernest Bevin.