Bua Buey Meaning: The Hokkien Name for Moon Blocks

Bua buey is the Hokkien name for throwing a pair of crescent-shaped wooden blocks to ask a deity a yes or no question. It is the same practice Mandarin speakers call jiaobei and English speakers call moon blocks or divination blocks. If you grew up in Singapore, Malaysia, or a Hokkien-speaking part of Taiwan, bua buey is probably the only name you ever heard for it.

This matters more than it sounds. Search for jiaobei and you get one set of results. Search for bua buey and you get a different, much thinner set. Same wooden blocks, same temple, two vocabularies that barely overlap online. This page is the bridge between them.

Why you see so many spellings

Hokkien is spoken far more than it is written, and it has no single agreed romanisation for everyday use. So the same two syllables reach the internet a dozen ways.

The spellings people actually type include bua buey, bua bei, bwa bwe, and puah pue. The blocks themselves are often just called poe, which is the Hokkien reading of the character for the block. You will also see kau poe and buay in older forum posts.

None of these is more correct than the others. They are all attempts to write a sound that was never standardised in the first place. If you found this page by typing any of them, you are in the right place.

The Mandarin name, jiaobei, is written with the same characters. So is the Cantonese name used in Hong Kong temples. The practice did not change when it crossed a dialect boundary. Only the sound did.

What you are actually doing

You hold two crescent-shaped blocks. Each block has one flat side and one rounded side. You state who you are and what you are asking, then let the blocks fall.

How they land is the answer. There are three possible outcomes, and they come from which sides face up.

One flat and one rounded. This is the affirmative, called sheng bei in Mandarin. The deity agrees, or confirms that the fortune stick you drew is the right one for your question.

Both flat sides up. This is the laughing outcome. The traditional reading is that the deity is smiling rather than answering, usually because the question is too vague or several questions got bundled into one.

Both rounded sides up. This is the negative. The traditional reading is that the deity does not agree, or that the question as asked does not stand.

That is the whole system. Two blocks, three outcomes, and a question you have to be honest about. If you want the decision framing rather than the vocabulary, our guide to asking a yes or no question with the blocks goes through how to phrase one so the answer is usable.

How to do it without overthinking

The mechanics are simple enough that people usually get them right on the first try. What takes practice is the question.

Hold both blocks together in your palms, with your hands closed around them. Say your name and where you live, either aloud or silently. State one question in one sentence. Open your hands and let the blocks drop naturally rather than throwing them.

Read the sides that face up. If you get one flat and one rounded, you have your confirmation and can move on. If you get either of the other two, stop before you throw again.

The most common mistake is treating a repeat throw as a retry. It is not. Two flat sides is a note about your question, and throwing the same question again will usually produce the same result. Rewrite the question first. Turn "will things work out for me this year" into something a person could actually act on, like "should I apply for the transfer this quarter".

Bua buey and fortune sticks

In most temples the blocks are not used alone. They are the confirmation step after drawing a fortune stick.

You shake the cylinder until one stick falls out, note its number, then use the blocks to confirm that this stick is meant for your question. One affirmative throw is enough. You do not need three in a row for a stick confirmation, although some temples use three consecutive affirmatives for weightier requests.

If the blocks decline the stick, the usual practice is to return it and draw again after you have restated the question.

If you want to see how the stick half works, our guide to reading Chinese fortune sticks walks through the numbering and grades. The jiaobei meaning guide covers the block outcomes in more depth.

Doing bua buey online

You can throw blocks at home with two coins, using heads for the flat side and tails for the rounded side. The pairing logic is identical.

We also built a free online moon block tool that does the same thing in a browser. No registration, and no charge. It is the same three outcomes, read the same way.

Whether a browser can carry the weight of a temple is a fair question to ask. Our honest answer is that the blocks were never the point. The pause was. Asking a clear question and then accepting an answer you did not choose is the part that does something, and that part survives the move to a screen.

When to put the blocks down

Some questions should not go to a pair of wooden blocks. Anything involving medical decisions, legal exposure, money you cannot afford to lose, or your physical safety needs a professional and a real conversation, not a yes or no from a temple floor.

The same goes for a question you have already thrown four or five times. At that point you are not asking. You are shopping for a particular answer, and the blocks cannot give you permission for something you have not decided to own.

What the word carries

Bua buey is worth knowing as a word, not just as a translation. It is the version of this practice that travelled with Hokkien-speaking families to Singapore, Penang, and beyond, and stayed alive in households that never used the Mandarin term at all.

If you learned it from a grandparent at a temple in Ang Mo Kio or on Armenian Street, that lineage is the real one. The spelling you use for it matters a great deal less than whether you ask a question you actually want answered.