The Crab People come from South Park, the animated series created by Trey Parker and Matt Stone. They appear as underground creatures in the 2003 episode South Park Is Gay, where their repetitive chant became the joke, presenting them as a lazy stand in for a hidden enemy. Clips and quotes spread through forums, compilations and soundboards, and the phrase became shorthand online for any absurd secret society. It remains popular because the reference is instantly recognisable and works even without the original scene.