DCHP-1 Online
sourdough boy Northwest, Obs. 
any old hand in the Yukon or the Northwest Territories; an old-timer, as opposed to a greenhorn, or cheechako.
See also: sourdough (def. 2c) cheechako ((n.))
- 1900 Grizzled "sour-dough boys," day-laborers at the mines . . . either patronized the spruce-looking tenderfeet and lied eloquently,--the "sour-dough boys" being specially created to toy with the truth,--or gave them savage looks of indignation because of their ignorance.
- 1900 Grizzled "sour-dough boys," day-laborers at the mines . . . either patronized the spruce-looking tenderfeet and lied eloquently,--the "sour-dough boys" being specially created to toy with the truth,--or gave them savage looks of indignation because of their ignorance.