Someone of the female sex that has so much potential in life. Any ideal and smart man would choose himself to be with this beautiful and intelligent woman for the rest of his life. She may also give you the feeling that she could be the "one". This female specimen typically enjoys doing random cartwheels that make people smile, yelling parkour as she jumps off things and singing with such an incredibly sexy voice that it is surprising that she is not the world's next super star in music.
Guy: (standing outside Shelby's room)
Shelby: Singing, lalalala
Guy: (open's door) Holy crap you are amazing!
Shelby: No I don't. (In Denial)
Guy: How has your day been so fa...
Shelby (Runs and jumps off random surface) PARKOUR!
Guy: (Facepalm) I think I like you.