Honestly, I'll be a five-legged shit-covered tarantula before I know entirely.
PsyBorg is obviously a pun on the words Psy and Borg. When joined together, they sound like Cyborg.
The "Borg" at the end of my name is because I always liked robots/my character is a cyborg.
I seriously don't remember why the Psy is there very well. I think I just did it for a pun, but it could also be there because I originally thought my character would be able to screw up the opponents' mind with his robotic stuff.
Overall, I just liked the name. So screw what it really means, I picked it because I liked it.