Board Thread:Off Topic/@comment-27082610-20170624011641/@comment-26397825-20170706131610

I'm pretty sure Hookshot is referring to Ruby's ability to ignore G-Forces from moving at such fast speeds, which a human body cannot naturally do. It's a side effect of her semblance that she doesn't fall apart when going super fast, which is something that is beyong the abilities of a normal human, and technically defies how the human body works because she simply ignores it entirely instead of being affected y it but building resistance.