This is an awful pseudo language used at, and only at Winchester College. Many of the notions in the Notion Book have fallen out of use. I enclose a couple for your delectation, and will return to add more with time. If I can actually find a copy of the book anywhere I will node it all, but for now here are the important ones for any potential Wykehamists:
athla: athletics.
to brock: to bully.
bogle (noun or verb): bicycle.
bookschamber (bookscha, bookie): a free lesson. Where one is meant to study or work. What a joke!
clint fort: a Colinism for Flint Court.
colinism: any malapropism used by Mr Colin Upton, a mathma don.
div: a combined subject, typically comprising elements of English, History, religious studies, and current affairs.
divdon: a teacher who teaches this subject.
don: teacher.
fo (foricas): toilet.
firk: to expel.
Flint Court: a large courtyard around which the school's classrooms are located.
hour: a lesson. This actually only takes 40 minutes, which always confuses people.
housedon: housemaster, i.e. evil overlord who runs a boarding house.
jun: junior. Also the junior steeplechase.
mathma: maths.
Porter's Lodge (a.k.a. Porter's Todge): a building where the porter resides.
rusticate: to suspend.
sergeants: a punishment in which a boy must get up and walk down to Porter's Lodge, where he signs his name on a list to prove he has actually done it.
sen: senior. Also the name of the senior steeplechase.
spree: cheeky, especially of a jun. man towards a sen. one.
up to books: in lessons. This refers to either being in a lesson, or the time when lessons are happening.
up town: in the actual town of Winchester. Defined as being north of the cathedral.