The exact origin of this recording is unclear, but the phrase daywalker comes from vampire fiction for a being who can move in daylight, most famously associated with Blade. Online, the clipped line spread as a reusable soundboard and short form video reaction, detached from any single scene. Creators reuse it as an ironic self description, pairing it with ordinary footage to make a normal trait sound supernatural, which is why it keeps circulating alongside other short meme voice lines like the bruh sound effect.