Seren Morris,William Mata and Rachael Davies We're into a new month and whiletoday we celebrate May Day, you might also hear people greeting others with the traditional “white rabbits”. It's a phrase that is often said on the first day of every month – but the majority of people who say it probably won't know why they do. Some will be making sure to say white rabbits before midday while, for others, the phrase will be the very first thing they say in the morning.