"My last (gold/ole) dollar is gone (x2), My whiskey bill is due an' my board bill too...." "Oh darling, I'm crazy about you... and another girl too..." "Oh darling, won't you go my bail?..." "Oh darling, six months ain't too long...."
We might note that the line "last gold dollar" had a slightly different meaning in the nineteenth century. During the Civil War, the Union government issued both gold-backed and unbacked ("greenback") dollars. The greenbacks were, not surprisingly, treated with less respect and discounted. A man who spend his last gold dollar might still have money -- but only the less valuable greenbacks.
Of course, since the song is often sung "My last OLD dollar," that may be just a bit of excessive historical analysis. - RBW