Prepertoire - prep·er·toire /ˈprepə(r)ˌtwär/ Noun:
1. The whole body of garments regularly worn by preppies.
2. The interests, hobbies, and items belonging to someone who is unabashedly prep.
3. The stock of skills or types of behavior that a preppy person habitually uses.
Ex. 1: All good preps have a Polo Cable-knit sweater in their prepertoire.
Ex. 2: You played rugby? I had no idea you had such a vast prepertoire.
Ex. 3: Muffy used her daddy's lawyer to get out of that fine. She always pulls that out of her prepertoire.