This is a historical question, and not meant in any other way... Why were/are the brits called Tommy's and the germans called Jerry's ? read more
Jerry is just a typical botched word that the British Army used for German. German/Jerryman= Jerry. The British army nay the British as a whole have a habit of kiboshing perfectly normal words/names for our own lazyness. Tommy has more meaning. read more
"Jerry was a World War I British Army slang for "German," 1919, probably an alteration of German, but also said to be from the shape of the German helmet, which was like a jerry, British slang for "chamber pot" (1827), probably an abbreviation of jeroboam. read more