There are a handful of words in the book which may require further definition. Here they are.
Geriatricity - the state of being a bit senile due to advancing age
Exstrange Students - foreign exchange students who act strangely
Protarded - being highly above average intelligence, yet socially inept and often outcast because of it
Bittersweet - a situation that makes you warm and fuzzy inside and you go, "Oh, that's so sweet" and at the same time, you cringe and say, "But that really sucks."