Sentence:  Sherm took Terhune to the lot, his thoughts at such loose ends after this bombshell that he stepped in a big wet <WSD>turdpile</WSD>, and it took half an hour, using sticks and an old toothbrush, to get the stuff out of the treads of his sneakers. 
Meaning of the word marked with <WSD> tags:  A mound of feces.