What does "神丝" (sound) mean in Shaanxi dialect?

Your classmates should be from Jingyang, Sanyuan, and Gaoling. They are from the same hometown as me. What you are talking about is Shensa: Shen means neurotic. In Guanzhong dialect, sa means head. The literal meaning is understandable. "Weitou has problems" means that someone is simple-minded, pedantic, alternative, unsociable, etc. However, it has no derogatory meaning in application. It is just a colloquial language and a joke. My answer to your question shows that I also have something - Shensha, Haha