There is no widely documented original source for this particular ok let me know clip, which is typical of short reaction uploads shared across soundboards and meme pages. Its appeal comes from the phrase itself, a common everyday sign-off that fits almost any request or update. Because the delivery is brief and neutral, creators reuse it as a low-effort punchline for chats, skits and comment replies. Short, quotable voice reactions like this tend to linger because they slot neatly into relatable social moments.