A Shelly-Girl is your ultimate woman. She will not judge you. She is a beautiful gal. She turns left in her car while looking right. She has layers around her that keep her from having deep relationships. She lives in a world of internal pain, but projects joy to others.
The smell produced by pretty girls. Pretty Girl Smell is a concoction of pheromones and pharmaceuticals. It attracts with the musk of fertility and the smell of sweet food, leading its victims to believe that the pretty girl would be a) a desirable sexual partner and b) delicious, if worse came to worse.
Entirely heterosexual female: "Oo, Scheherazade, you smell different today, is that pomegranate perfume?"
(Enter PRETTY GIRL having bathed in lard soap)
Male population of the earth: **trembles, melts worships**
Entirely heterosexual female: **becomes misnomer**
Girl smell does not actually refer to any particular smell, but rather an idea. When a pretty girl walks by, and you catch a nice aroma, that's girl smell. Can also be written as girlsmell.