The phrase is a playful phonetic spelling of oh my god, written and spoken in an exaggerated style that became common in meme captions and reaction videos. Instead of a specific film or show, the clip spread as a generic soundboard and short-form video reaction, passed around because the stretched pronunciation is instantly recognisable. Creators keep reusing it for moments of mock horror, gossip, and over-dramatic surprise, where a normal gasp would feel too flat and a longer rant would slow the joke down.