A farvegnugen is just the opposite of a royale. Your lead foot is grinding on the frame and outside of the skate, and your trailing foot is on the inside of yoru frame and skate. This is one of the hardest grinds to do because you are grinding in the opposite direction of your skates. Practice stalling this one a lot because it feels really weird and it took me a long time to get used to it. A variation of this is a torque grind. This is a farvegnugen on one foot, you are just grinding on your lead foot and holding your back foot.