name

• (UK, US, ethnic slur, dated) A personification of the German people.
  "Phipps went on: “One of our chaps, out on a reccy over the Bulgarian front, thought he saw something in the snow. Something fishy. He dropped down to have a dekko and nearly had kittens. What d'you think? Jerry's got a mass of stuff there—tanks, guns, lorries, every sort of heavy armament. All camouflaged. White.”"

noun

• (British, US, ethnic slur, dated) A German, particularly a male German.
  "But Robert had been cheeriness itself, had told them to buck up and think of England, reminding them that moaning wasn’t going to beat the Jerries."

noun

• (UK, Ireland, slang) A chamber pot.
  "We used chamber-pots a good deal – ‘jerries’ – cause of much hilarity doe to the hostilities."

adj

• (dated) Jerry-built.
  "If a man builds a jerry-house, he has a jerry conscience; and there are a lot of consciences of that description going about."