subspace

noun4

1. •
   A subset of a space which is a space in its own right.
2. •
   Any (often unspecified) method of communicating or travelling faster than light speed.
3. •
   An alternative dimension or universe, access to or use of which permits faster-than-light travel or communications; hyperspace.
4. •
   (slang) The psychological state of the submissive or bottom during sadomasochistic activity.

   • My problem, though, is that when he whips me, I resist going into subspace. He has to whip me for fifteen or twenty minutes before I even begin to feel any psychological effects. — 2000