The sound comes from Minecraft and is most closely associated with an activated Nether portal, one of the game's most recognizable ambient effects. Because Minecraft became a huge part of online gaming culture through YouTube, streams and short-form edits, the portal hum spread beyond gameplay clips. Creators still use it as shorthand for teleporting, crossing into chaos or entering a different world. Its popularity lasts because players recognize it immediately, even when it appears briefly in memes or edited skits.