Let's try, then:

An honest drawing is one that is made with utter disregard for the crap that stays on the paper after the fact.

For some reason it is called a “drawing” and not a “drawn”. The name seems to imply the present continuous i.e. an action that is presently going on. The real drawing is not the dirt on the paper that we can see afterwards. That is just the evidence that the act has taken place. The drawing is the act itself.