The 'Oh, You Love X? Name Every Y' meme is a satirical take on 'gatekeeping' culture within fandoms, where self-proclaimed experts challenge others to prove their dedication through impossible trivia. While the phrasing has existed in various forms online for years, it gained significant traction in late 2019 and early 2020, often paired with an image of Robert Downey Jr. or a similar smug character. The meme effectively mocks the absurdity of elitist fans who believe that liking a subject requires encyclopedic knowledge. Today, it's widely used to create ironic challenges for everything from obscure music genres to everyday activities, serving as a humorous critique of internet elitism.