"É Melhor Ser Piranha Do Que Ser Infeliz" translates to "It's Better to be a Piranha Than to be Unhappy" in English. The song talks about the idea of choosing to have multiple partners and living a carefree lifestyle rather than being in a committed relationship and ending up unhappy. The lyrics suggest that it is better to be seen as promiscuous (piranha) than to be unhappy in a monogamous relationship. The song also touches on the idea that those who cheat or betray their partners will not go to heaven, suggesting a sense of rebellion against traditional moral values. This song is an expression of individualism and freedom, and it challenges the idea of societal expectations in relationships.