1 definition by Czar Derpovichskilienko

The infinite amount of space within something in which items are stored. Inventories in video games are a prime example, as the character is somehow able to hold a metric fuckton of stuff without any sign of even a bag on him.
Guy 1: "Dude, 500 pokéballs?! How do you even fit all of that in one pocket?!"

Guy 2: "It's a hammerspace backpack, bro."
by Czar Derpovichskilienko March 30, 2010
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