Growtopia is a multiplayer sandbox game where players build and trade in player made worlds, and nuking a world is understood by players as the harshest possible shutdown. The wording also plays on the famous line about nuking from orbit as the only way to be sure, which the original page description quotes directly. Short explosion clips like this spread through soundboards and editing packs because, much like a vine boom, they are instantly readable, need no context, and can turn any deletion, ban or disaster joke into a clear punchline within a second.