Radioactive Shrimp from Walmart circulates online as a short meme sound built around a deliberately absurd phrase, rather than a line tied to a well-known film, show or viral video. Its appeal is in the specificity: Walmart grounds the joke in everyday shopping, while radioactive shrimp pushes it into cartoonish exaggeration. Creators reuse it as a quick reaction and caption sound in short-form edits, where an unexpected or gross food moment needs an instant, memorable punchline. That simplicity helps it stay useful long after its first uploads.