Fritz
/frɪts/noun
1- Brit. informal, dated a German, especially a soldier in the First World War (often used as a nickname)〈英, 非正式, 旧〉（尤指第一次世界大战期间的）德国人, 德国兵（常用作外号）。
1.1
- in sing. the Germans collectively总称德国人。
词源
abbreviation of the German given name Friedrich.