C'Thun is one of the Old Gods in World of Warcraft, a vast, eye-like ancient evil that players encounter as a raid boss in Ahn'Qiraj. His whispered, distorted voice lines became memorable because they contrasted with the game's usual heroic dialogue, sounding ancient and inhuman. As soundboards grew popular, this short warning was clipped and shared by players who recognised it instantly, even without playing the game. It remains in use because the line is short, ominous and instantly sets up failure, making it an easy shorthand for danger in gaming edits and reaction videos.