That title just sounds wrong. Using a very loose pen sketch technique which basically involves keeping a fineliner pinned to the paper and not picking it up until the sketch is more or less done, then doing similarly rough blacks with a big marker.
Purpose? To loosen up the hand, actually (and much needed with how little drawing I’ve been doing).
This one actually not the second sketch I did on the page, but the third. For some reason the second sketch is always crap. 😐