Short vocal reactions like this spread through meme edits and soundboards because they say a whole emotion in under four seconds and fit almost any clip. The wow became a staple alongside other one-word reactions such as bruh and the oh my god meme, shared in group chats, gaming highlights and short-form videos whenever something impressive or absurd happens. Its appeal is its flexibility: played straight it signals genuine amazement, played after a fail it turns sarcastic, which is why creators keep returning to it for quick comic timing.