“Quid pro quo” is a Latin phrase that means “something for something” in English. It refers to the exchange of one thing for another, often in the context of transactions or negotiations where one party gives something valuable in exchange for something else of value. It can also refer to a mutual agreement or arrangement where one action is dependent on another. However, it is often associated with negative connotations, especially in discussions of unethical or inappropriate exchanges, such as bribery or corruption.