knebbing
n.— «The book tells of how a large crane which became known as the Whittle Cross was used to load and unload the barges and how villagers would scavenge for scraps of coal which fell into the canal during offloading—a practice known as knebbing.» —“Guide brings history alive” by Gordon McCully The Citizen (Chorley, Lancashire, United Kingdom) Sept. 14, 2006. (source: Double-Tongued Dictionary)