The popular name for girls meaning "sparkly" in latin. A Jaynelle will most likely be extremely intelligent, beautiful, interesting, and fun. She is the kind of person with whom one can have a deep and intellectual conversation, or a wild and crazy night out on the town. She is witty and charming, and can easily grab the attention of a room with her captivating presence. She is, in all definitions of the word, "it".
Gee, I wish I could be like her. She's such a Jaynelle.