Tuna

The Tuna sound — the clip that launched a thousand searches for 'tuna soundboard.' It's an absurdist little audio whose entire appeal is how confidently it says what it says. Use it as a non-sequitur interrupt, a conversation reset, or proof that the internet will make anything famous. If you know, you know; if you don't, press the button.

Origin: The viral 'tuna' clip popularized through soundboard culture.