In William S. Burroughs' "Naked Lunch," the stark imagery of a coprophage highlights the themes of absurdity and the grotesque in human nature. The act of calling for a plate, defecating on it, and subsequently consuming the excrement signifies a perverse celebration of base instincts and desires. It reflects a critique of societal norms and the often unpalatable truths that individuals face in their lives.

This evocative scene challenges the reader to confront discomforting realities, emphasizing the complexities of human experience. Burroughs uses this vivid metaphor to explore the boundaries of pleasure, consumption, and the repulsiveness that can accompany them. The phrase "Mmmm, that's my rich substance" suggests a twisted appreciation for what is normally considered undesirable, prompting deeper reflections on morality and desire.