UK Prime Minister Theresa May has joked, using the text-speak abbreviation of expletive-laden exasperation, to describe Boris Johnson as an FFS - saying that in this case it stood for being a Fine Foreign Secretary.

Her comment came at Prime Minister's Questions after being asked by Labour MP Peter Dowd if she regretted appointing Mr Johnson to the Foreign Office, suggesting that she may have misunderstood the meaning of the letters FO written next to his name when she was choosing her cabinet.

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