There is no widely documented source for this exact chant, so it is best understood as an online meme sound rather than a clip from a known film, show, or song. Short vocal phrases like this spread because they are easy to search by their exact words, easy to drop into a four-second edit, and instantly recognisable even without context. Creators reuse it across reaction videos, comedy edits, and friend-group jokes, where the repeated amigo and the closing ei ei act as a shared in-joke. That simplicity keeps it in circulation long after its first uploads.