"Classy" typically denotes sophistication, refinement, and good taste in how one carries themselves, dresses, and behaves. It implies an aura of grace and dignity that commands respect and admiration.
"Fabulous" suggests a sense of glamour, style, and confidence that makes a person stand out in a positive and impressive way. It conveys a spirit of self-assuredness and a magnetic presence.
In essence, the quote celebrates the beauty of a girl who exudes both class and fabulousness, embodying poise, style, and confidence. It suggests that by combining these qualities, a girl can leave a lasting and positive impression on others and feel empowered in her own skin.