"Dough" is a slang term for money, commonly used in informal conversations. It refers to cash or currency that people use to buy goods and services. The term is part of a larger set of slang words for money, which also includes terms like bucks and moolah. The origin of the term "dough" is believed to come from the idea of making bread, as dough is a key ingredient in baking. Just as dough is essential for creating bread, money is essential for facilitating transactions in everyday life.