I think "whip cracking" or "sport cracking" are not that bad terms, and they seem to be widely used already.
The problem is that those terms do not really translate. When I started this hobby, I had a really hard time explaining it to anyone. This is not a usual hobby in Finland, and therefore there is really no terminology at all. Imagine someone looking at your whip, pointing at the fall and asking what it is, just to hear you going "umm... well.. I really don't know what I should call that".
And that is just the whip itself. Explaining whip cracking is yet another hilariously frustrating conversation I have had several times already.
someone: "So, you made this?"
someone: "Cool! So... What do you do with it?"
me: "Well... I whip."
someone: "Oh. Needed a change in the bedroom routine?"
me: "No, these are not sex toys. In fact these are not toys at all, hitting someone with this can easily draw blood or take out an eye."
someone: "Oh, I see. So... These are just for plain torturing?"
me: "No, I don't hit people with these. That would be recklessly violent."
someone: "Ok, I see."
* moment of silence *
someone: "So... What DO you hit with these?"
someone: "No, seriously, you don't just wave them around in the air?"
me: "I do exactly that."
* blank stare *
I am not even kidding, this happens almost every single time I try to explain my new hobby to someone. And that conversation could stretch to infinity without the convenience of having youtube available pretty much everywhere.
All this for not having a simple word for "cracking a whip in order to better master routines that are a display of coordination and/or accuracy without sex, torture or sexual torture involved".
Alas, I have already given up. Just a correctly timed "so, when was the last time you broke the sound barrier with something you made with your own hands?" is a nice way to stop a conversation that is not going anywhere