That is a frag. I found a video. It's not a new move, it's some random shit that someone made up. You slash and dash a bunch of times. With a sword, and bfing, it's called Dashing and bfing. See, kstylers dont make up names for moves that aren't actually moves.
http://www.youtube.com/watch?v=gSlnRJThKHA is the correct video. And it's just jump dash slash in different directions.