seoi2 gwaa1 daa2 gau2水瓜打狗
Jyutpingseoi2 gwaa1 daa2 gau2
Yaleséui gwā dá gáu
Definition
A Xiehouyu (two-part allegorical pun) meaning to lose a chunk or a section of something.
colloquialother
How it's used
This is a classic Cantonese 歇後語, a two-part allegorical saying where the second half is often omitted by speakers who assume the listener knows the punchline. The full phrase is 水瓜打狗,唔見一橛, referring to the fact that a soft cucumber breaks upon impact with a dog, leaving a piece behind. It is used to describe a situation where something is lent or given away and never returned, effectively lost forever.
Examples
You lent him that book, it is like beating a dog with a cucumber (it is gone for good).
Related words
Common phrases
To beat a dog with a cucumber, a piece is lost (the full idiom).
Common mistake
Learners often misunderstand this as a literal action or a violent idiom, but it is strictly used to describe the permanent loss of an object. Do not use it to describe physical fighting or actual animal abuse.
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Grammar guides
- TonesCantonese has six tones, and the tones can change in certain grammatical contexts. Learn the six tones and the rules for tone change.
- Time and datesClock time, days of the week, months, and years. The patterns you need to make plans and talk about when things happen.
- Modal verbsHow to say can, will, may, should, must, and want. The core modal verbs of Cantonese and the differences that trip up beginners.



