The Dear Sister meme comes from a 2007 Saturday Night Live digital short, a parody of melodramatic TV scenes from The O.C. The sketch famously uses Imogen Heap’s song “Hide and Seek” during an over-the-top chain of shootings. Online, people clipped the “Mmm whatcha say” section and turned it into a reaction sound for ironic betrayal, fake tragedy and slow-motion chaos. It stayed popular because the format is simple to remix and fills a role similar to Hello darkness my old friend in sudden-failure edits.