The line comes from Trymacs, a German Twitch streamer whose clips circulate widely as short reaction sounds in the German-speaking streaming community. Its German title translates as Trymacs only knows Cola Zero, a deliberately absolute statement that fans turned into a shorthand joke about his drink choice. Shared through soundboards and short video edits, the clip spread because it is short, instantly quotable and easy to drop into unrelated moments. It remains in use as a light-hearted way to signal uncompromising taste, especially in gaming and reaction content.