Is there someone whose dollar that I can borrow
The narrator’s begging for a dollar just to get him through the day. He probably knows a dollar isn’t going to get him anything in this day and age, the dollar is just a symbol for money in general.
But this isn’t always true. In the especially poor parts of the country a dollar can buy you smokes, maybe a beer, or a sandwich or soup in some places. So even with the diminished value of the dollar it can still handle some of the things these people need to get by.
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