The loan is in Hong Kong dollars, the main betting currency of Macau (its own currency is called the pataca).    From Wordnik.com.  [Macau’s Big Gamble] Reference

About two hours before daybreak you will hear the red monkey moaning as though in deep distress; the houtou, a solitary bird, and only found in the thickest recesses of the forest, distinctly articulates "houtou, houtou," in a low and plaintive tone an hour before sunrise; the maam whistles about the same hour; the hannaquoi, pataca and maroudi announce his near approach to the eastern horizon, and the parrots and paroquets confirm his arrival there.    From Wordnik.com.  [Wanderings in South America] Reference

Macau pataca (MOP).    From Wordnik.com.  [The 2004 CIA World Factbook] Reference

Macau: pataca (MOP).    From Wordnik.com.  [The 2001 CIA World Factbook] Reference

Currency: pataca (MOP).    From Wordnik.com.  [The 2004 CIA World Factbook] Reference

Currency (code): pataca (MOP).    From Wordnik.com.  [The 2007 CIA World Factbook] Reference

Currency: 1 pataca (P) = 100 avos.    From Wordnik.com.  [The 1999 CIA Factbook] Reference

1 pataca (P) = 100 avos.    From Wordnik.com.  [The 1994 CIA World Factbook] Reference

The figures showed that 21.1 billion patacas (2.7 billion U.S. dollars) of the domestic loans was pataca-denominated and 67.8 billion patacas (8.6 billion U.S. dollars) was denominated in HK dollar, representing 22.2 percent and 71.2 percent of the total respectively.    From Wordnik.com. Reference