That is a pen pusher or a pencil pusher.

那是推笔器或推铅笔器。

So sometimes a pen pusher is also used to refer to someone who just has a boring job.

所以有时候 pen pusher 也用来指代刚刚从事无聊工作的人。

Not very interesting, but of course it's necessary in organizations to have a lot of people who are pen pushers.

不是很有趣，但当然在组织中有很多人是笔推手是必要的。