At lunchtime today and colleague was telling me about slang words he had learned from the media and asked me if I knew them.
Not being able to read Chinese or watch Chinese TV I didn't know what he was talking about.
One of the words he taught me was lang4 qing1 浪青.
He explained that in China there are young people who have jobs where they don't have much to do all day. Some try to act important and look like they are "working", but really aren't busy, partly because they don't need the money, or they are doing these time-wasting jobs to get the benefits. Many state-owned enterprise jobs are like this, or government positions.
As a result, talent and brain power of young people are wasted, which is why they are called langqing.