Little is known about who first recorded the Hamish Eshay Killa 69 clip, and it circulates mainly as a standalone soundboard upload rather than a clip from a film or show. The eshay reference points to Australian youth slang, which helped it spread in gaming and meme communities looking for short, shouty reaction sounds. Its appeal is the drawn out Isaac yell, which can be dropped into almost any context without setup. It remains in use because that single exaggerated shout is instantly recognisable and easy to reuse.