North American
 

British

Band-aid  

Plaster

Horse Chestnut  

Conker

Wrench  

Spanner

Tired  

Knackered

Hungry  

Peckish

Energetic  

Sparky

Running shoes (Canada), tennis shoes (US)  

Trainers

Boots 

 Wellies

Underwear  

Smalls or Knickers (As in ”Don’t get your knickers in a twist”.)

Sweater 

Jumper

Babysitter  

Minder

School crossing guard  

Lollipop Lady

Apartments  

Flats

French fries  

Chips

Chips  

Crisps

Cookies  

Biscuits or bickies

Zucchini  

Courgette

Elevator  

Lift

1st floor  

Ground floor

2nd Floor  

Is the 1st Floor

Trunk of a car  

Boot

Hood of car  

Bonnet

Closet  

Wardrobe

Bad mood 

Nark

Uncool 

Naff

Working hard OR having sex

On the job  

F**k off 

On your bike

Drinking session 

Piss up

Diapers  

Knappies

Mailbox  

Postbox

Sidewalk  

Pavement

Yard  

Garden

Trash can  

Dustbin

Thumbtack  

Drawing pin

Subway  

Tube or Underground (Subways are underground walkways only for pedestrians)

Stingy 

 Mean

Stores  

Shops

Spool of thread  

Reel of cotton

Vacation  

Holiday

Shoulder of the road  

Verge of road

Stroller  

Push chair

One way ticket  

Single ticket

Round trip ticket  

Return ticket

Liquor store  

Off license

Movie  

Film

The movies  

The Cinema

Dessert  

Sweets, afters, pudding

Drug store  

Chemist’s

Crib  

Cot

Rent 

Let

Take out (food) 

Take away

Thank you 

Cheers , ta

Expensive 

Bomb

Angry, upset, pissed off 

Brassed off

Flippant 

Cheeky

Chuffed 

Pleased

Stupid 

Daft

Sick (ill) 

Dicky

Useless, trash 

Duff

Desire something 

Fancy something

A bet 

Flutter

Go all the way, or the whole thing 

Full monty

Very upset 

Gutted

Making out 

Slap and tickle

Lucky 

Jammy

Nap (sleep)  

Kip

Momentarily (in North America it's used to mean in a short while)
 

Momentary (In England it's used to mean for only a second)

 Not to be trusted

 Dodgy

Courage 

Bottle

Goodbye 

Can be Cheers too

Bollocks:  Literally testicles, but used to describe something that is no good OR something that is very good. Go figure. 

Blow me:  Rather like - You could knock me down with a feather 

Cor:  An expression of surprise 

Excuse me:  Be careful with this one. In the US and Canada "excuse me" is used when you are encroaching in someone's personal space or have stepped on their toe. "Pardon me" is used when you don't hear someone properly.

In England kids are taught to say "excuse me" when they belch in public and "pardon me" if they fart out loud. Before I learned this I got a few interesting looks saying excuse me to fellow passengers on the tube. 

Fanny:  A woman's ahh..... "front bits". So you would think that to fanny around would be rather an enjoyable experience; but that only means to procrastinate.

Some of my favorite "sayings" include:

All mouth and no trousers (All talk and no action)

As useful as a chocolate teapot (Completely bloody useless)

Bob's your uncle (Sort of like - And there you are!)

Can't be arsed (Couldn't be bothered)

Daft as a brush (Not too bright)

Drop a sprog (Childbirth)

Give over! (Give me a break)

In bits (Confused)

Knickers in a twist (Upset)

On the wonk (Broken)