Little verified detail is publicly available about where Ninjighini first appeared, so its spread is best understood through how it is shared online rather than through a single named source. The clip circulates as a short, standalone meme sound on soundboards and in short-form edits, where its unusual name does most of the work and makes it easy to recognise and reuse. That portability has helped it travel between creators who want a quick, absurd audio punchline without needing a longer scene or explanation.