gwai2 tau4 zai2鬼頭仔鬼头仔
Jyutpinggwai2 tau4 zai2
Yalegwái tàuh jái
Definition
A traitor, especially a police informant.
colloquialpeopleslang
How it's used
Carries a strong sense of betrayal and distrust, often used in criminal or underground contexts to identify someone leaking information to authorities. While it specifically targets police informants, it can also be used more broadly for anyone acting as a double agent within a group. It is highly derogatory and should be used with caution as it implies a serious breach of loyalty.
Measure word
go3個goExamples
So he is the informant, no wonder so many secrets got leaked.
Watch what you say, there is a snitch here.
Related words
Common phrases
to catch an informant
Common mistake
Do not confuse this with 鬼仔, which is a common, neutral term for a Caucasian boy or a Westerner. Using 鬼頭仔 in a casual social setting to refer to a foreigner will cause significant offense and confusion.
Grammar color guide
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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.



