The whip combo in the first video is made up. It is a variation of a trick called follow. Here’s a tut for it, then you can try experimenting to come up with your own!
And for the chop style, I would just learn some chopstick mounts and play around from there. A lot of these tricks are all unique to the player them self. Here’s some chop style stuff:
Hope this helps! The bottom line is though that it’s fun to just make up your own tricks! If you see something that looks neat, try to do something that looks like it, but add your own flair!