As a cultural expert, I can tell you that the phrase "white rabbit" on the first of the month is a superstition that originates from Japan. It is believed to bring good luck and is often associated with the beginning of a new lunar cycle. The "white rabbit" is a reference to the rabbit that is said to live on the moon in Japanese folklore, which is similar to the Chinese legend of the Jade Rabbit. The idea is that seeing a white rabbit on the first day of the month will bring prosperity and good fortune for the rest of the month.

Here's the translation:

作为文化领域的专家，我可以告诉你，“white rabbit”（白兔）在月初的说法源自日本的迷信。人们相信这会带来好运，并且通常与新的农历周期的开始有关。“white rabbit”（白兔）是日本民间传说中的月亮上的兔子，这与中国传说中的玉兔相似。这个想法是，在月初看到白兔将会为这个月剩下的时间里带来繁荣和好运。

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"Rabbit rabbit rabbit" is one variant of a superstition found in Britain and North America that states that a person should say or repeat the word "rabbit" or "rabbits", or "white rabbits", or some combination of these elements, out loud upon waking on the first day of the month, because doing so will ensure good luck ...read more >>