Ever seen NC on its own on a Chinese post? That’s short for naocan (脑残), or braindead.

You get to hear this the most often when it comes to discussing interchange stations that require a Long March to change from one line to the other (sorry): We have some seriously NC designers… (设计通道的那帮人 NC 了吧!)

It may not, by the way, stand for niucha (牛叉), which is short-ese for niubi (牛逼), as in really, really cool.