The sometimes shady process of aquiring new friends on Myspace from other people's friends list.
Space-Jacker #1: "Man, did you see that chick on Jeremie's profile?"
Space-Jacker #2: "Yeah, that bitch is pretty fuckin fine. I think imma have to space-jack her."
Space-Jacker #1: "Man I went space-jacking last night, and picked up like 23 new bitches...allllll fine as fuck. yeahhhhh man."