Thank you for your answers 
Just now I had another mindblowing exprience:
I’m reading なぜ?どうして?科学のお話2年 (unfortunately not following the book club thread) and just read the chapter about why octopuses and squids spit out ink. And there it was:
かわりみのじゅつ !!
How many times did I hear that phrase while watching Naruto? I never had a second thought about it then, just assuming it is the name of the technique and that’s it. But it actually translates to “lightness of foot; ability to dodge out of an attack technique” 
Well, I can’t really describe that bubble of joy that formed in my stomach while reading this. But I’m sure, you all know that feeling 
I will never forget that phrase now 
And maybe I should take the time and look up some other techniques and see what they really mean ^^