The Trench Coat Clan, a group of highschoolers who go to Red Rocks Highschool, are teenagers who dressed differently from everyone else in the Rise of the Wyrm Lord. Antoinette Reed was a part of them. They wore black clothes, did their hair in weird dos, wore makeup, and it is mentioned that some even were into cigarettes and other.
However, a few were just like normal kids—they just decided to dress a little differently. Wayne Thomas Batson uses this to describe one of his thoughts... about how if people dress differently, they are sometimes treated differently—even though they are the same as others.