Doesn't cut it? Reader question: This – Sorry doesn't cut it – is a headline. But what does it mean? My comments: It means merely saying "I'm sorry" isn't good enough. Whoever feels sorry should do more to pacify those he's saying sorry to. "Doesn't cut it" is an idiom – and a nice little expression to learn. If something doesn't cut it, it means that it's not quite up to the standard required to accomplish a particular task. This is a good idiom to learn because it is so simple. I have a hunch (only a hunch) that the expression is a variation from the age-old English idiom "doesn't cut the mustard" , which means the same thing – that something doesn't quite work to one's satisfaction. This phrase may have come from the fact that mustard is easier to cut than butter at the table, meaning it's an easier job. If something doesn't even cut the mustard, it is hence no good. Some say the expression may have derived from the American cowboy expression "proper mustard" , meaning the genuine thing, the best. Others trace it to traditional mustard making, in which a special knife is used to "cut it" (whatever that means) during the course of its making. If the knife "doesn't cut it" , the overall quality of the finished product is somehow affected. If the knife "cuts it fine" , on the other hand, the finished product is tasty and good... Does my explanation cuts it fine with you? I know, I know, I know. Explaining English is a thankless task. Never mind. Just remember that "doesn't cut it" means the same as "doesn't cut the mustard" . In fact remembering "doesn't cut it" alone will do. It's much simpler than "doesn't cut the mustard" and is much more popular anyway. It is on the strength of its simplicity that I advise you to master it – it is good everyday English. By the by, the expression is more often used in the negative than in the positive. That is, if something "cuts it" , say it works. Only say "doesn't cut it" when it doesn't, indeed, quite cut it. Here are more examples: Good figures alone don't cut it in depressed times No pain, no gain. As the credit crisis took its inevitable toll, the three once high-flying shares unceremoniously dumped from the No Pain, No Gain portfolio have, not surprisingly, failed to recapture any of their old sparkle. And the delivery of encouraging profits has again been contemptuously ignored by the stock market. - The Independent, April 19, 2008.