gobbing
Gob"bing, n. Etym: [See lst Gob.] (Mining) (a) The refuse thrown back into the excavation after removing the coal. It is called also gob stuff. Brande & C. (b) The process of packing with waste rock; stowing.
Gob"bing, n. Etym: [See lst Gob.] (Mining) (a) The refuse thrown back into the excavation after removing the coal. It is called also gob stuff. Brande & C. (b) The process of packing with waste rock; stowing.