Euro (mostly British) Phrases that are catching on in the U.S.?

[MitchL]

I love "Having a go" and "taking the piss." I remember watching an Oasis interview one time when I was on acid and they kept using the word "nipple" as an adjective which I couldnt get enough. They were both "on the piss" and you couldnt make out much, but every once in awhile you would hear
"Yeah, but he's a nipple." Not sure if thats British, but I couldnt stop laughing.