Top Definition
An empty bag from boxed wine that has been blown up to be used as a pillow. Due to the tap, firmness can be adjusted to perfection. Comes in very handy after having finished all that wine.
>Wasn't it uncomfortable sleeping behind the dumpster?

>No, I had my space bag pillow with me.
by russiangopher September 20, 2006
10 Words related to space bag pillow

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