Bruh has long been used online as a short, dismissive response to something foolish, obvious, or disappointing, and the repeated version stretches that single reaction into a running gag. Rather than coming from one identifiable clip, it spread through meme edits, gaming videos, and short-form posts where creators looped the word to underline a fail. Its staying power comes from its simplicity: anyone recognises the tone instantly, even without context, so it still works as a quick punchline for awkward, predictable, or self-inflicted moments.