The song "New Girl" by Yung Crusha is about moving on from an old relationship and finding someone new. The lyrics depict a sense of freedom and adventure as the singer embraces the excitement of a new romance. The song talks about leaving behind a fake and superficial ex-girlfriend and finding someone who is genuine and exciting. The lyrics also touch on the idea of success and rising up in life, with the singer feeling confident and in control of his own destiny. Overall, the song conveys a sense of moving forward and leaving the past behind, while embracing new opportunities and experiences.