Little is known about where BooYao Keke first came from, so its life online is defined by how creators reuse it rather than a single confirmed source. The phrase works like a taunting playground chant, easy to recognise after one listen and easy to quote in comments. Short meme clips like this spread because they need no context, and editors can place the chant over gaming moments, pets, sports bloopers or everyday fails and get the same teasing effect without explaining the joke to the viewer first.