It's a shortened form and vowel of "Urban Exploration". It is the act of going to and exploring places that are not normally visited or often even accessible to the general public. Such places might include (but not be limited to) abandoned factories, abandoned or derelict buildings, unused nuclear bunkers, old Forts/Military buildings, disused rail yards etc. The REAL urbexer will NOT break in to these places, in fact it's considered VERY bad form. But if a fence happens to be broken down and access can be obtained without causing any damage, then that's considered fair game. VANDALISM and GRAFFITI are NOT allowed, and any rubbish (e.g. food wrappers/bottles) would be taken away after the visit. Photos are often taken just to prove you have been there. Trophies if you will. Due to the types of places that might be visited, urbexing CAN be dangerous and therefor it's a good idea to let someone know where you have gone and your ETA back afterwards so they can raise the alarm if you don't return.
Where have you been today ?

I went Urbexing with friends to Grain Fort. It's a great shame they let Napoleonic Forts like that just rot away.
by Zoe Ballz July 19, 2014
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The present participle verb form of urbex. Urbexing is the act of exploring urban areas that are generally off-limits to regular civilians.

Other names for urbexing are: draining, building/roof/drain hacking, buildering, vadding or shafting.
Cassie: Dude, where the hell werz you at? you missed the game.

Nick: I had to lie low from to popos for a bit.

Cassie: ?whyz?

Nick: i was urbexing wit david and that noob set off a magnetic alarm. it was tiight, we had to hit da brikz tho
by KeRvOshh-KiS November 22, 2009
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Urban Explorer, one who explores abandoned places.
the urbexer found a way into the abandoned state hospital.
by plaguebeast April 21, 2010
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Acronym shortened from URBANEX meaning Urban Exploration. The URBEX adventure is enthralling, addictive, and oft misunderstood.
URBEX gives me that rush I refuse to live without.
by MothMan February 19, 2004
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Awesome people who aren't major wusses and love to explore abandoned property. An Urbexer who is true to the game does not vandalize or steal from the property.
You can typically find an Urbexer carrying camera equipment...because pics or it didn't happen!
by Urbexer Sarah July 17, 2012
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Short for Urban Exploration. It is the act of exploring places in a city you normally don't get to see or aren't allowed in, such as abandoned buildings, drains, or rooftops.

It is a misconception that it directly involves graffiti or destruction. They are seperate hobbies but will often be found in the same location.
There's really cool videos on YouTube of people doing urbex. My favourite channel is Fogarty Avenue.
by Fogarty Avenue July 5, 2017
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URBEX is the process of exploring and documenting significant abandoned buildings, including those with historical importance that otherwise would be lost and forgotten. Specifically, when URBEXing, you should leave only footsteps.
The Proper People went URBEXing to document what remains inside of the gilded-age mansion.
by SomeMetroGuy August 5, 2021
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