Potions master, not Potion's master or Potions Master

Kissing with glasses on is uncomfortable and leaves greasy smears on the lenses

Unless Harry is almost legally blind, he can still see someone he's blowing without his glasses

British children do not graduate, they just finish their exams and leave

Peanut butter and jelly sandwiches are not common in the UK

Various stages of petting are not rated by 'bases'

There is no 'third date' rule in the UK

The age of consent for heterosexual sex in the UK is 16 for females

There is no legal age limit for heterosexual sex for boys

Until 1994, the age of consent for homosexual male sex in the UK was 21. In 1994 it was reduced to 18, and in 2001 it was reduced to 16

Sex between an adult in a position of authority (ie: a teacher) and someone aged 16 or 17 is still illegal in the UK

There is no legal age of consent for lesbian sex in the UK

Translations

Candy = Sweets
Pants = Trousers
Diapers = Nappies
Pacifier = Dummy
Cookies = Biscuits (unless they're of the chocolate chip variety)
Sneakers = Trainers
Underpants = Pants or Knickers (girl)
Allowance = Pocket Money
Zucchini = Courgette
Suspenders = Braces
Retainer = Braces
Jelly = Jam
Ass = Arse
Asphalt = Tarmac
Sidewalk = Pavement
Mall = Shopping Centre
Fall = Autumn
Comforter = Duvet
Liquor Store = Off-Licence
Chips = Crisps
Fries = Chips
Flashlight = Torch
Cooler = Alcopop
Hickey = Love-Bite
Vacation = Holiday
Semester = Term
Store = Shop
Faucet = Tap

Since I'm fed up of updating this page twice a day, why not take a look at this?