verb Smoking an enormous amount of weed and snorting adderal to counter act each of their individual items negative effects. The result is a hillarious, clear state of mind.
"Well, i just snorted my adderall, pass the bong and we'll be spacewalking in no time."
The act of taking another person's books out of their back pack, turning itinside out and replacing ther books into it. Then they zip it up and awaiting a reaction from them. This is done as a practical joke when someone leaves a room (classroom, dorm etc.).
Yo, I just spacebagged Joe.
Spacebagging is so much fun.
I hate when peoplespacebag me.