Oof

A sound effect from a popular game by the name ROBLOX, made by dying in a game.

(Roblox stole this sound effect from another game by the name of Messiah developed by Shiny Entertainment)

The word oof is used commonly for either feeling sorry for someone or for when you feel awkward and don't know what to say.

I died while trying to complete this obby
- Oof.

I don't know what to say, Oof.