The imagery in David Sedaris' quote from "Holidays on Ice" paints a vivid picture of a dialog that is overwhelming and somewhat unpleasant, much like a suffocating environment filled with spoiled meat. This simile suggests that the conversation is heavy, stale, and perhaps difficult to endure, evoking a sense of discomfort that parallels the experience of being trapped in a confined space with something rancid.

Through this comparison, Sedaris effectively conveys the mood and atmosphere of the scene, emphasizing the impact of words when they lack freshness or engagement. The quote reflects his sharp wit and ability to illustrate complex emotions and situations through humor, encouraging readers to reflect on the nature of communication in social gatherings.