boss chart

I've never heard of such a chart. Can you provide any details it?
What was/is the context in which you learned of the chart (i.e. source of info)?
Did the source identify what kind of data the chart is used for?

A web search (so far) reveals no specific chart of this type.

If you are wanting to create charts then be specific about your data/needs.
There are lots of video demos on YouTube and tutorials on the web.