The 'Subway Sandwich Porn' meme belongs to the broader 'food porn' internet subculture, where aesthetically pleasing food is humorously compared to adult content. This specific variation focuses on the visual appeal of a well-crafted Subway sandwich, often highlighting the absurdity of finding a fast-food meal so attractive. It is frequently used by fans of the chain to joke about their intense cravings or to mock the surprisingly high-quality presentation of certain sandwiches in advertising compared to reality. The meme serves as a relatable piece of content for anyone who has ever felt an irrational level of excitement for their lunch, turning a simple sandwich into a comedic object of desire.