In "The Sea of Monsters" by Rick Riordan, the author presents a humorous and vivid description of the smell associated with the underside of a sheep. The comparison likens it to a winter sweater that has been soiled and neglected in a laundry hamper, capturing an overwhelmingly unpleasant scent. This imagery evokes a sense of realism and playfulness, characteristic of Riordan's writing style.

This quote serves to enhance the narrative by adding an element of whimsy while also grounding the story in relatable experiences. It reflects the author's ability to convey humor, even about less appealing aspects of life, which is appealing to readers. The description not only entertains but also enriches the reader's imagination, making the scenes in the book more vivid and engaging.