A british slang term similair to the word "damn". Also a word which many Americans use in order to sound "cool", despite the fact that they sound like total wankers.
Yank: "Dude, what the bloody hell was that?!"
Brit: "...your a wanker."
Brit: "I'm sick of those Yanks using our bloody words all the time. Can't they make up any of their own, or must they steal everything from us Brits?"