The exact origin of Toiu Ninjet is not widely documented, and it appears to have spread mainly through user-generated soundboards rather than a well-known film, show or game. Its small but steady presence suggests listeners found it, saved it and passed it on because the short clip was easy to reuse in edits. That kind of quiet, community-driven circulation is common for niche sounds, which survive less through a single viral moment and more through repeated use by creators who want a recognisable, ready-made reaction for short-form content.