The term 'Claymation Green Guy' refers to the character Gumby, a stop-motion clay animation character created by Art Clokey in the 1950s. Gumby is a green humanoid figure made of clay, and is the protagonist of the series of the same name. He is often accompanied by his orange sidekick, Pokey. Gumby has become an iconic figure in popular culture, appearing in films, television shows, and video games.