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2.
See hobo; also bum.
That Urban Explorer is like a city dwelling mountain man.
by Jose Montenegro August 25, 2006
 
1.
a person who explores abandoned and/or derelict buildings in urban centers.

such exploration is often frowned upon by the authorities as it often involves either trespassing or break an enter.
My friend Jack considers himself an urban explorer, last week he went into the old hospital.
by lavothas January 29, 2008