One of my students is going abroad next month to London for a year. The poor guy is so sweet, but unprepared for immersion at this point (he has trouble understanding my slowed down American speech, I can't imagine him whilst "wanka" and "bollocks" and what not are being thrown out him at a staccato pace).
I told him that I would poll my limey friends for slang and idioms to help him out (Koreans are taught American english and I'm sure any slang they learn is text book and circa 1995, he has "awesome" down pat).
So my dear Corks, please help me put together a list of things that he can expect to hear and not understand that are particular to Brittish english. He'll be overwhelmed either way, but I want to give the little guy a little edge.