Oouff!
Oouff is a sound that describes extreme pain, usually mental pain. Also known as the Roblox Death Sound. Often used in dead memes.
Guy: And then she dumped me. She's taking the dog. And I just was diagnosed with severe depression.
Guy 2: Oouff!
Guy: Asshole.
Guy 2: Oouff!
Guy: Asshole.