The hurt sound comes from Minecraft, Mojang's sandbox game first released in full in 2011, where it plays whenever the player character takes damage from mobs, falls, lava or other hazards. As Minecraft became one of the most watched games on YouTube, the short grunt was clipped, shared and reused far beyond gameplay videos, becoming shorthand for a sudden hit or failure. It remains popular because it is instantly recognisable to a huge gaming audience and works in a fraction of a second.