look up any word, like fleek:
 
1.
A turd in a condom - put in the freezer for a few hours and then used as a dildo.
Proper dildos are expensive, I prefer to just use a space docker.
by Copernicus November 23, 2004
 
2.
One who endeavors in the pursuit of defecating, in a sexual manner, into the confines of a prevalent sexual orifice (both the vaginal cavity as well as the rectum are accepted entrance locations).
The spacedocker pooped inside my dad's butt hole this morning.
by the rimlord December 07, 2010
 
3.
Also someone with a limited grasp on reality
My brother is a space docker
by surfergrl December 24, 2004