Sentence:  The <WSD>Heinies</WSD> had run off. We were suspicious; the boys were a little nervous because in a hedgerow we didn't know where our friends and foes were. Suddenly Bud said, “Damn, there's a <WSD>Heinie</WSD> over there. There's his helmet!” 
Meaning of the word marked with <WSD> tags:  A German, especially a German soldier.