The act of sitting in a basement and doing nothing. Most commonly this is found in a group of friends who are boring and have nothing else to do, or are too lazy to get off their asses and make something of their lives. Basementing is the opposite of adventure.
Yo, you want to go over to Chris'?
nah bro they're just basementing again.
lets go climb a mountain and go basejumping.
YEA!
by the real patyfatycake January 31, 2011
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A person who is secretly a nerd, and is afraid to tell anyone.
Bill: Hey have you seen Jimmy?

Ted: Yeah, he's off playing D&D with some freinds, but don't tell anyone because he's totally in the basement.
by ninjarabbi May 10, 2010
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Camping and/or cramming numerous bodies (people and pets alike) in a homeslice's basement for a particularly awesome weekend.
"I would much rather go on an extra basementation than go to another townie wedding."
by basement squatter September 28, 2012
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An underground approach to teach repetition. It's about staying down to earth and humble.
always gotta spit that basementality
by sfsdgsadfs November 12, 2008
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not just a basement, but a house that everybody refers to as "the basement." The basement in the house is the best part of the house where everybody congregates and chills.
"yo lets go to the basement and figure out what we are going to do."
by core 5 August 10, 2006
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