To love someone so much and lose them, yet your willing to die for them. If you love the song Space Bound By Eminem and feel the lyrics apply to you, then you are space bound.
The transportation of butt juice from one fool's anal cavity to another's through a tube, usually see through, but that is not entirely necessary. Sometimes it is perforated, but that can get messy.
Last night I had a galactic spaceboarding adventure.
O Yeah.
Bart: You wanna go to the movies?
Raul: Naw, lets go spaceboarding.
Bart: I'm down.
Raul: Quiet, troll.