Re: eating one too many donuts
We use the phrase fairly casually. It doesn't have to mean exactly "X+1" but it's something around that figure. If a friend saw me in the street, looking a little ill and rubbing my stomach, she might say "What's wrong with you?" and I might reply "I think I might have eaten one doughnut too many". I'm not giving her an exact figure. I'm just saying that I should have stopped eating doughnuts before I did.
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