It's the shawty that ya boys never see they only hear about. You only communicate with her via digital technology (Ex. text, Gchat, AIM, Facebook, Myspace, Skype, etc.).
"Shawty is bout to be my new digital girl", "I'm about to turn that girl digital", "I just pulled a digital girl"
You go on Spring Break and hook up wit a shawty, get her name and numba and make her ya digital girl. You spit game to her on the side after the break by texting, facebooking, skyping, etc.