The more lines you do the darker the shading becomes.
Of course, I just clicked this link off the home page. It could have a whole other slang meaning I don't know.
(v): To take something that was previously boring, unoriginal, or old, and visually revitalize or renew it.
The shop crosshatched the front window, and it looks great.
Can you help me crosshatch my fashion-style?
This place needs a serious crosshatching.