The 'This Is My Body' meme is based on classical religious depictions of the Last Supper, specifically the moment Jesus Christ institutes the Eucharist by breaking bread. Online, the meme gained traction as a relatable way to describe one's physical composition or personality based on dietary habits or modern obsessions. Users typically replace the context of the bread with items like pizza, iced coffee, or niche hobbies to jokingly suggest that their entire being is fundamentally made of that specific thing. It functions as a versatile format for self-deprecating humor and hyperbolic declarations of love for specific foods or lifestyle choices.