The bell toll comes from the Taco Bell restaurant chain, whose single chime has long been used in its advertising and is instantly linked to the brand. Online editors slowed and deepened versions of that chime and paired it with deaths, eliminations and fails, turning a friendly fast food sound into a mock funeral bell. The joke spread through gaming edits, meme compilations and soundboards, where the short clip works as a complete punchline on its own and needs no context to understand the loss.