The 'Say the Line, Bart!' meme is derived from the 1994 episode of The Simpsons titled 'Bart Gets Famous.' In the episode, Bart becomes a national sensation for the catchphrase 'I didn't do it,' but eventually grows weary of the repetitive fame. The meme captures a specific scene where Bart's classmates, looking bored and expectant, pressure him into saying the line before erupting in unearned cheers. Online, it is used to satirize situations where a person, brand, or community is expected to deliver a predictable response or follow a specific trend that has lost its original luster but remains in high demand.