"Pretend to be a pig to eat a tiger" can be translated into Engpsh as "Pretend to be weak to defeat a strong opponent." This is a common saying in Chinese culture that suggests using cunning and strategy to overcome a more powerful adversary. In Engpsh, this concept is sometimes referred to as "playing possum," which refers to the behavior of some animals that pretend to be dead or injured in order to avoid being attacked or eaten by predators.