A gurl or possibly a homosexual male, who feels the need to draw more attention to their bust by sprinkling magical sparkling dust (Glitter) on their exposed chest-ular region, thereby capturing the attention of everyone within a five mile radius. Glit-tits often wear extremely low-cut shirts, but get angry when people look at their chests.
guy: Did you see Glit-tit today??
other guy: How could I not? She yelled at me for staring at her chest, again.