Ibglohordin outside of the box.
Ordinarily you'd think the opposite of Jack was Jill, but Jill is really Jack's female counterpart. The Yin to his Yang. Instead, Jack is often the name used to refer to a random man and is a common name, the opposite would be a name which is neither.
And you'd think it should be, "outside the sphere," however that wouldn't be the opposite of in the box, it would be the opposite of in the sphere.