All the examples here are English. Anyone got foreign language ones?! "It may have ended almost a century ago, but if you're feeling a little 'washed out' or 'fed up', the First World War may have something to do with it. The conflict is responsible for hundreds of words and phrases being used today, according to a new study. Terms believed to have become common parlance because of the war include 'cushy', 'snapshot', 'bloke', 'wash out', 'binge drink' and 'pushing up daisies'. It is claimed that many of the phrases had previously been used by just one geographical region or social class before the war - until hundreds of thousands of British men were forced to mix with one another in the trenches. Historians Peter Doyle and Julian Walker have analysed thousands of documents from the period. Studying letters from the front, newspapers and diaries, they have traced the striking development of the English language between 1914 and 1918." How the mixing of millions of soldiers during World War One led to words such as 'binge drink', 'washed up' and 'cushy' enter everyday use | Mail Online
Most intereesting Gordon, the French also have their "Vocabulaire du Poilu" dixionnary with hundreds of typical expressions. For instance the slang for wine "Pinard" is in fact the name of the Minister who was in charge of sending supplies to the soldiers.
