The Yu-Gi-Oh! card meme stems from the popular trading card game and anime series. It involves placing images into the classic card template to assign stats, descriptions, and types to real-world objects, people, or situations. Most famously, the 'You Activated My Trap Card' variant became a staple of early internet culture, used to point out when someone has fallen into a logical trap or made a tactical error. Today, the format remains a versatile way to satirize everyday events using the nostalgic aesthetic of the iconic duel monsters game.