There is no widely documented origin for this particular chant, so it is best understood as a piece of internet soundboard culture rather than a line from a known show or film. Short, chant-like vocal clips like this travel easily because they need no translation and can be dropped into almost any joke. The nga nga ngangna clip has found a small audience among meme editors who reuse catchy, nonsensical sounds as reactions, and its brevity makes it easy to share, remix and replay without losing the punchline.