The words before the list are quite telling: "So we were much amused this week to come across this humorous list of what the British say vs what the British really mean (and what our friends in the EU think they mean)."
Actually, the one I don't really agree with is that we mean (or are understood to mean) "a bit disappointing" when we say "quite good". I certainly mean "quite good" when I say it.
I've always liked "With all due respect" - I mostly use it when the amount of respect due to the person I'm talking to is zero!
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