A great list from Wikipedia
Check out:
List of British words not widely used in the United States
Here are five of them -- a lot more at the site.
berk -- a mildly derogatory term for a silly person
chav -- (slang, often derogatory, used primarily in England) typically a nouveau riche or working class person of most of the time lowish intelligence who wears designer label (e.g. Burberry) copies, fake gold bling, and is a trouble-maker
fairy cake -- a small sponge cake (US and UK also: cupcake)
Mole grips -- trade name for latching pliers (US: Vise grips)
wobbler, wobbly (to have or to throw) -- (informal) tantrum
Posted by DaveH at April 27, 2013 4:55 PM