And I finally got to the origin of misunderstanding. It was a bad translation, really, as in my language we call it "the foot thumb" because it's thicker than other toes like the thumb is thicker than other fingers. We also call toes 'feet fingers'.
No, I am not related to circus folk, haven't got freak-show talents, except that I can move my eye-balls very rapidly.
Rapid Eye Movement, like when you're dreaming or watching a really fast game of tennis? Cool.