In "Double Whammy," the author's description of a character's voice as deep and wet, resembling mud slipping down a drain, creates a vivid and unsettling image. This imagery suggests a voice that is not only deep but also carries a heavy, viscous quality, hinting at the character's possibly sinister or untrustworthy nature.

The quote captures a moment where the reader perceives the tone and character of the speaker through sensory details, emphasizing a sense of discomfort or suspicion. Carl Hiaasen's use of descriptive language enhances the mood and helps paint a more detailed picture of the scene and characters involved.