Another phrase that started across the pond and is almost always used metaphorically is "at the end of the day," an equivalent of the American "when all is said and done." A couple of years of overuse sucked all the life out of it, and now no self-respecting American writer would perpetrate it. A LexisNexis search reveals that it's still quite popular in the U.K., however.
It's strange to learn that many terms that I see and hear every day are foreign to some English-speakers.