UFC flyweight Casey O’Neill, currently ranked No. 11 at 125 pounds, has been dealing with a social media troll over the last several days, though unlike most female fighters, the nutcase formerly known as “Cal” wanted to show her something other than his genitals. His hands. “Casey is such a low level fighter,” he wrote on Twitter. “Women’s MMA is low level in general but Casey is something else. I have no fighting experience at all but could still fight better than she does. I’ll turn up, spar, and prove my point. An average male that doesn’t train could win…