Also a term (at least in this part of the world) for the figures and clothing styles of young students.
These are the 18-21 year olds who still place a great deal of emphasis on how they look but they're just moved out of home to go to university, so they can wear all the things their parent's wouldn't let them.
Generally student bodies fall into two main groups:
Obviously this is a continuum, but the outliers are always more noticeable. As students mature they tend to move towards the mean.