fast and loose

The phrase "fast and loose" is an idiomatic expression that typically means to act in an unconstrained or unscrupulous manner, often disregarding rules or moral principles. It can also refer to being reckless, unpredictable, or inconsistent in behavior or decision-making. The phrase originated from medieval cheating games involving a ball or loop attached by a string, where players would manipulate the game to deceive their opponents.