There are numerous synonyms for the phrase "bad girl". Some commonly used alternatives include "rebel", "delinquent", "troublemaker", "black sheep", and "culprit". Additionally, the term "vixen" can be used to describe a woman who enjoys causing mischief or breaking rules. "Naughty", "mischievous", and "wayward" are also terms that can be used to describe a girl who exhibits bad behavior. However, it's worth noting that these words often carry negative connotations and can be used to unfairly stereotype or label young women. It's essential to remember that people are complex and multifaceted and should not be reduced to a single label.