What does FK slash BK mean in crafts?
FK/BK are references to names of knots. So FK is forward knot,
and BK is backwards knot. So with a FK, you take your 2 strands and
make a "number four" shape, and you finish wrapping around and
pulling through. A BK is similar, but you make a backwards "number
four" and then finish wrapping around and pulling through. When you
see them with slashes, it means to do it one way and then the other
way.