Fengzi is Chinese for a psycho or crazy person. I'm not Chinese but did live in China for a while. My name in Chinese is Feng Mai Ke but I always mispronounced the Feng part so it sounded like I was saying Crazy Mai Ke (Mike). My friends there just started calling me Fengzi and it kinda stuck. When I got back to the States I started using it as my internet name because it was never taken and was better than something like mike4002345422776.