DA da DAAAA!
Thank you, Bean, for nobly taking up the cause of "from whence" (a few posts back).
"fully authorised by the use of good writers"
Hey, I'm a good writer! Must go celebrate with some two-bite brownies....
but before I go, some more Brit slang (sort of):
What are you like?
You git!
Town bike
Taking in laundry
and the rather rude

"You twat!" - which, interestingly enough, is pronounced differently in the UK - where they make it rhyme with "cat" - from how it is pronounced in (scary loaded word coming up) the colonies, where it rhymes with "what."