Mirando por ahí:
In the bight (or
on a bight) means a bight of line is itself being used to make a knot. Specifically this means that the knot can be formed without access to the ends of the rope.
Bight: The part of the rope or line, betwee the end and the standing part, on wich a knot is formed.
Es decir que es un nudo en un cabo sin la utilización del chicote.
http://en.wikipedia.org/wiki/File:Al...erfly_loop.jpg