Drunken Thread : Distortions in the spiral path of a thread around the pin. Sometimes applied to wavy threads or threads which crests that undulate around the periphery of the threads. (Bul 5T1, RP 5A5)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}