I've never heard the term in reference to quilting, and had to google it to figure out what was being discussed. I'm not sure "furling" is the best term to use, since it means to roll up. I don't want my seams rolled, I want them flat, lol.
Most of the time, I've heard it referred to as "spinning the seams" or something similar, as Bonnie Hunter does here.
http://quiltville.blogspot.com/2005/06/spin-those-four-patch-seams.html
John Flynn also has a video showing how to do this, maybe that will help you.
http://www.youtube.com/watch?v=ZzbKc1lie0E