It's just like our 'saleung' and 'satang'. A dollar or American and Canadian money is called a buck. The one-dollar coin in Canada is called 'a loonie'. That is because there's a duck, a loonie, on the coin.
British currency is sterling and one pound is called a 'quid' or a 'nicker'.
Money in general can be referred to as 'dosh', 'dough', or 'bread'. They are a quarter, a dime, a nickle and a penny respectively. They are . A one-pence coin used to be called a 'shilling'. But now the word has become obsolete.