The phrase oh my days is long-standing British slang for shocked disbelief, similar to oh my god, and blud is London slang for friend that spread widely through gaming and TikTok culture. Clips using this wording circulate as short reaction audios rather than from a single confirmed film or show, with creators reusing the shout to caption fails, surprises and chaotic friend group moments. Its staying power comes from the delivery and the slang itself, which reads instantly as funny disbelief to UK audiences and meme viewers online.