Lil Jon built his reputation in early 2000s crunk as a hype-driven performer whose shouted ad-libs, including what, yeah and okay, became instantly recognisable hooks in themselves. Imitations on television comedy, especially sketches lampooning his delivery, helped turn the shout into a cultural shorthand for disbelief. As short clips spread on soundboards, video edits and social platforms, the sound kept its punch because it needs no setup. It still works today as a fast, shared reaction that signals surprise without slowing a joke down.