ceoi1 bo1 zai2吹波仔
Jyutpingceoi1 bo1 zai2
Yalechēui bō jái
Definition
To take a breathalyzer test for alcohol.
colloquialtransportslang
How it's used
This term originates from the visual appearance of the breathalyzer kit, which involves blowing into a small bag that inflates like a balloon. It is exclusively used in the context of police traffic stops. Using this term instead of the formal 酒精呼氣測試 shows you are familiar with local police slang.
Examples
Don't drive if you've been drinking, you might have to take a breath test at any time.
Have you been drinking? Why did the police ask you to take a breath test?
Related words
Common phrases
to be breathalyzed by the police
Common mistake
Do not use this term in a medical context, as it specifically refers to police enforcement, not clinical lung function tests.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- Aspect markersCantonese has no tenses, but it does have aspect markers. Learn how zo2, gwo3, gan2, and hai2 dou6 show completion, experience, and ongoing action.
- In 30 secondsThe whole language at a glance. No tenses, no plurals, six tones, sentence particles. Read this before you dive into any specific topic.
- ParticlesSentence particles add tone, emotion, and nuance. Learn the most common particles in Cantonese and how to use them.



