1) The US Dollar in the 21st century. A reference to the US Dollar's instability as a world currency, especially related to the Canadian Loonie in 2007, Euro and Yen in 2000 - 2002 and again 2008 - 2011.
2) Throwaway money, especially when you are trying to get someone to give you some.
Earliest reference "The Economist" September 27, 2007
1) No, your house probably won't be worth more as long as we use Yankee Lira to finance our debt, run huge trade deficits and massive federal budget deficits.
2) Hey, give me some Yankee Lira for the jukebox.