Jerry
/ˈdʒerɪ/noun
(pl. -ies)
1- Brit. informal, dated a German (especially in military contexts)〈英, 非正式, 旧〉德国人（尤用于军事语境）。
1.1
- in sing. the Germans collectively总称德国人：
Jerry has some 200 dive-bombers at Spitzbergen.
德国人在斯匹次卑尔根岛大约有200多架俯冲轰炸机。
词源
First World War: probably an alteration of GERMAN.