When someone wants to "beat the system," they are usually trying to gain an advantage or find a loophole. There are many synonyms for this phrase, such as "game the system," "manipulate the system," "circumvent the rules," "outsmart the authorities," "bend the rules," or "find a way around the regulations." These phrases all convey the sense that the individual is trying to gain the upper hand or work around established rules and regulations to achieve their desired outcome. However, it's important to remember that "beating the system" can often lead to consequences and may not be ethical or legal.