I'm going out to wash my hair when it rains. Where does it come from?

I have no money recently and I don't want to talk about it. If I have no money to talk, I won't be very poor. Don't call me for activities above/kloc-0 yuan. I envy you every time I look at my circle of friends. You are beautiful and rich. You show a necklace or a steering wheel, and you go everywhere every day. I can only watch your hair silently and take a bubble from time to time to prove that I am still alive. Anyone who loves me dearly will give me a red envelope to celebrate the Mid-Autumn Festival. Really, I'm so tired. Forget it. It's raining. I'm going out to wash my hair, or it will stop raining again!

There is also a video of this joke on the Internet.