slush fund

The phrase "slush fund" typically refers to a dishonest or secretive reserve of money, often used for illegal or unethical purposes. It is commonly associated with funds that are accumulated through illicit activities or unauthorized means, such as bribery, embezzlement, kickbacks, or tax evasion. These funds are usually outside the regular accounting and financial systems and are meant to serve personal interests, finance illicit activities, or conceal financial wrongdoing. The term "slush fund" generally implies a lack of transparency and accountability in the handling of funds.