Top definition
Like parkour, abuilding takes place in an urban setting on man-made objects, especially buildings. Usually done only by crazy rock climbers who wear sneakers. The point is to spot a very climbable looking surface and attempt to scale it using no climbing equipment.
"Well, I was walking around town, and the church looked
inviting, so I went abuilding and soon I was clinging to the steeple!"
by Steve Hoglund June 20, 2007
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