What it means:It's New Year's Day, and you're getting hot flushes, twitches and bloating. No, it's not early-onset menopause, it's the cumulative effects of all that Christmas and New Year's over-indulgence. You've been partying hard since the staff do in early December – time to take a janopause, ie stop all carousing for the entire month of January. But, according to the British Liver Trust, giving up drinking for a month won't be enough to repair your liver – in fact, it might be worse for your health, giving you a false sense of security and encouraging you to over-indulge again after your period of self-imposed abstinence has ended.

Where it comes from:Janopause was coined by the Daily Mail, to describe the post-Crimbo alcoholiday that most people vow to take during the first month of the New Year. "Detoxing for just a month is medically futile," consultant hepatologist Dr Mark Wright told the Mail.

How to say it:"Charlie Sheen has his own version of a janopause – every February 29th he puts fresh squeezed orange juice in his vodka."