What does it mean to tell fortune by moving penis?

Why do fortune tellers call people Buddhist?

Because when I was telling fortune, I wrote down all my birthdays. In the end, I knew all my Yin and Yang characters. As soon as I calculated, I moved my penis. After I moved my penis, this man's fate will be discounted.

In fact, fortune telling itself is not very helpful. The most effective way to change one's destiny is to learn Buddhism.