This knot begins like the Overhand, but here the running end makes two complete round turns around the standing part before passing through its loop.
Make a crossing turn with the running end by passing it down, over the standing part, down behind it, up over it, down behind it again, and through the loop. Pull on the standing part and running end to tighten.
The name of this knot refers to the profession of dockworkers, who were said to use this as a stopper knot. Although it is not wider than the Figure Eight, it is bulkier and has a distinctive look when pulled down as a stopper knot. This knot is difficult to pull down to stopper knot form when tied by twisting the crossing turn.