A benjamin (lower case) was the unofficial name for a hundred dollars in the currency of the United States in the Home timeline, which had gone through a period of hyperinflation. A single dollar was a nearly worthless aluminium coin; even a benjamin was not worth very much, not even enough to pay for a single bus fare. The Euro had gone through a similar process of hyperinflation. Europeans tended to speak of a hundred Euros as "A Big One" in whatever language they were speaking, the equivalent of the American benjamin.