The Yee sound comes from Dinosaur Adventure, the low budget animated film by Dingo Pictures, where a small dinosaur answers with a squeaky yee. Clips of that exchange spread on YouTube in the mid 2010s and turned into remixes, song edits and reaction videos. The exe has stopped working part riffs on the familiar Windows program error message, turning the clip into a joke about a brain or app crashing. Together they survive because both references are instantly readable, even in a very short edit.