I'm not sure what you mean by "running man121216". This doesn't appear to be a common phrase or title. Could you please provide more context or clarify what you're asking about? Are you referring to:

1. A specific TV show or program?

2. A date (December 12, 2016)?

3. A username or code of some kind?

4. Something else entirely?

If you can give me more information, I'll be better able to help you with your query.