Commonly represented by oof, this is the true method of saying the sound that plays when a character in roblox dies.
The file can be found in the directory "%localappdata%/Roblox/Versions/(current version)/content/sounds" and is named "uuhhh.mp3". The sound made it to vast popularity around February / March of 2017, mainly featuring remixes of songs using the death sound.
Soon after its spike in popularity, the game engine was updated to play the death sound when changing the volume settings in-game.
