Sentence:  He looked up at Gestas and said, “Get me a Carvel vanilla <WSD>thickshake</WSD>.” “Sir?” “You heard me. A vanilla <WSD>thickshake</WSD>. And not one of those watered down things they pass off in the cafeteria. I want the real thing.” 
Meaning of the word marked with <WSD> tags:  A beverage consisting of milk and ice cream mixed together, often with other flavorings as well.