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2.
The bag that holds the wine in "Boxed Wine".
Hey, wanna get a spacebag? You then take the bag of wine out of the box and drink straight from the nozzle and throw it around the room.
by sarah515valleyjunctioncrew March 23, 2004
 
1.
Refers to the bag of wine found within boxes of wine--"box wine". Generally contains about 5 liters of wine and has it's own spout attached (ie. like the brand, Franzia). Since its consistency is obviously very fluid within a clear bag, it looks similar to stereotypical packaged space food meals.
When you go to the liquor store can you just pick me up a handle and space bag for the party?
by hahnesolo January 12, 2006
 
3.
The process in which you take someone's backpack. Empty all its contents, proceed to turn the backpack inside out, put all the afore mentioned contents back into the bag, and zip the zippers back up. Appearing to be a bag for space, there are no straps, and no way to open the bag quickly, so they will have their own Spacebag at least until the next class.
-Dude, did you see Kyle got spacebagged??

-yeah dude, that sucks
by rowls05 March 29, 2010
 
4.
the act of taking ones stuff out, flipping their bag inside out, putting said stuff back in, and re zipping the backpack. aka the ultimate prank.
yo i spacebagged jimmy today in math!

damn bro youre a spacebag proo.
by connormcc5 April 12, 2011
 
5.
The art of taking one's bag, taking out all his/her stuff in the bag, and flipping the bag inside out. Then putting the stuff back into the flipped bag and zippering up the bag before the person notices.

One or two people usually partake in this prank.
John: "Yo don't spacebag me. Seriously. I'm going to the bathroom."
Alex: "Alright, fine. Don't worry."
*John goes out of classroom*
Alex: "Alright guys, let's do this."
*John comes back* "OMFG. I TOLD YOU TO NOT SPACEBAG ME."
Alex: "TROLOLOL"
by Xhan13 April 14, 2011
 
6.
The act of covering something in a bag and sucking the air out to preserve it
"Oh yeah, I'd spacebag her in a second"
or
"Let's go spacebag some boohbahs!"
by McSwallister November 27, 2007
 
7.
When you take everything out of a backpack turn it inside out and put all the stuff that was in it back inside
I'm going to go space bag that kid's backpack
by space_bagger April 15, 2011