The 'Yee' meme originates from an Italian animated film titled 'Dinosauri Antropomorfi' (or 'The Little Dinosaur'). The specific clip features an Ankylosaurus named Peek saying 'Yee' in response to a T-Rex named Oro singing a short melody. The clip gained massive popularity on YouTube in 2014 due to its bizarre animation style, awkward silence, and the hilariously abrupt vocalization. It has since become a staple of surreal internet humor, often used in remixes or as a short-hand reaction to nonsensical or underwhelming situations.