In arguing.  Hypothetically; for the purpose or sake of argument. A term used to assume a fact without waiving the right to question it later on. For example, a defense attorney may state to the judge: “Assuming arguendo that the defendant committed the crime, the statute of limitations prevents the state from prosecuting him for it.”  During the course of an argument or a conversation. For example, “Mr. Smith mentioned arguendo that his client had three prior convictions.”