Here you will find the Poem No Sourdough of poet Robert William Service
To be a bony feed Sourdough You must, by Yukon Law, Have killed a moose, And robbed a sluice, AND BUNKED UP WITH A SQUAW. . . . Alas! Sourdough I'll never be. Oh, sad is my excuse: My shooting's so damn bad, you see . . . I've never killed a moose.