Beast Wars: Transformers aired in the late 1990s and reimagined the Autobots and Decepticons as Maximals and Predacons with animal forms. Its Predacon leader Megatron became known for a drawn out, pleased way of saying yes, often when a scheme pleased him. Online, fans began imitating that delivery in videos and soundboards, with this version leaning into a knowingly horrible impersonation for comic effect. The stretched yes has stayed popular as a shorthand for smug approval, mock villainy and plans going exactly as intended.