The Roblox "oof" sound, which became famous not just with players but around the internet as a meme, has been removed from the game entirely due to a licensing issue.

Fans of Roblox may notice that a familiar, iconic sound is gone: the oof sound effect, which often played upon taking damage or death. Now it’s been replaced with a “dehhh” due to licensing ...

The Roblox oof. A loud, muffled cry of pain whenever your blocky little chap dies. It's an iconic sound, one that is so ingrained in my memory I'm not sure I'll ever forget it.