From China Digital Space
闲扯淡 (xián chě dàn): idle chit-chat
When a resident of Hubei wrote a letter to the mayor of Yingcheng complaining that a particular project lacked sufficient on-site investigation, he received the following reply.
Our office has no time to engage with you in idle chit-chat. If you have something to say, come and say it directly at our office.
After this incident, the phrase “idle chit-chat” become a popular internet meme.