Abuilding

[Julene]

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.

[Couch Potatoe]

In the process of being built or building. Also figurative in later use. Only in predicative use.