Junk 5 : Metal debris lost in a hole. Junk may be a lost bit, milled pieces of pipe, wrenches, or any relatively small object that must be fished out of the hole. (ITOGP)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}