Pink Guy is a character from the Filthy Frank YouTube series created by George Miller, known for chaotic comedy sketches and a bright pink bodysuit. The drawn-out noooo scream comes from that world of exaggerated reactions, and it later spread through meme edits, reaction videos and soundboard sites where short, instantly recognisable outbursts are reused. It has stayed popular because the sound needs no context: one long, desperate no instantly signals failure, disbelief or comic despair in almost any edit.