There's a YouTube video to go with this one, but believe it or not, it's a little too over-the-top even for a Silly Sword Fights episode. (We try to keep things G rated around here.) So you'll have to use your Internet sleuthing skills to find it yourself.  But the gist of it is:  sabre-wielding rabbits meet in an icy field, have great battle, spill blood all over the place, get romantic for a while, then have at each other with axes.