The phrase ngay nay lau lam comes from everyday Vietnamese speech, where it is used to say that today is taking a very long time. Short spoken clips like this spread through soundboards and group chats because the meaning is clear even from the tone alone, and the line can be reused without any setup. It has stayed in use as a low key reaction sound rather than a loud meme, passed between creators who need a quick way to mark boredom, waiting, and time moving slowly.