The clip comes from Imogen Heap's 2005 song "Hide and Seek." It reached meme status after being used in a major scene from The O.C. and then widely recognized through the Saturday Night Live digital short "Dear Sister" in 2007, which exaggerated the song for repeated slow-motion shock gags. Since then, "Mmm whatcha say" has stayed popular online as a shorthand for betrayal, accidental harm, and absurdly dramatic editing. It still shows up in reaction memes because the opening vocal is recognizable within a second.