The sound comes from Regular Show, the Cartoon Network animated comedy about two park workers, Mordecai and Rigby, whose exaggerated reactions became a signature part of the show's humour. Clipped and shared on soundboards and social video, the drawn-out oohh became a shorthand for shock and disbelief, especially in reaction edits and meme compilations. Its length makes it easy to time to a reveal, which is why creators keep returning to it years after the show ended.
About this sound
The long, rising oohh reaction from Regular Show, stretched into a dramatic cartoon gasp. Creators use it for shocking reveals and awkward moments in memes.
This clip is a single, drawn-out oohh that starts low, climbs steadily and holds the surprise for almost seven seconds before trailing off, giving it the feel of a cartoon crowd reacting in slow motion. The voice is exaggerated and theatrical rather than realistic, so the longer it goes on, the funnier and more dramatic the moment feels. It works because it stretches a split-second reaction into a whole beat, letting viewers sit in the shock, embarrassment or disbelief before the punchline lands. Played at full length, it turns a small reveal into something that feels huge, awkward and impossible to ignore.
