Nickame used among friends
to be named a "DieDie" one must be so good looking people want to "Die" if they can't go out with them.

A DieDie must be a good friend, and cannot be someone who's a bitch/bastard.

Sometimes short for "Diana"

DieDie's have other good qualities besides good looks, such as creativity--for example, a DieDie may be a musician or artist.