Sentence:  Diesel took a large swallow out of the glass of red wine. He spluttered, choked, and spilled wine down one leg of his fawn colored pants. “My God,” he gasped, when he could speak. “What is that crap?” / “Why cheap red wine,” Ford displayed the label. “You know. <WSD>Plonk</WSD>.” 
Meaning of the word marked with <WSD> tags:  (wine)  Cheap or inferior everyday wine.