Definition of pigging:
(n) :
(engineering) The use of a pig (the device) to clean a pipeline.
(adj) :
Damned (used as a mild intensive).
(n) :
Alternative form of piggin. [(dialect) A small pail, can, or ladle with the handle on the side; a lading-can. In the colonial era, some buckets were made like a small barrel, but with one stave left extra long. This stave would be carved into a handle so the bucket could be used as an oversized scoop for scattering grain, slopping the hogs, etc.]