din1 din1 fai3 fai3癲癲廢廢癫癫废废
Jyutpingdin1 din1 fai3 fai3
Yaledīn dīn fai fai
Definition
Silly, eccentric, or behaving in a slightly crazy or goofy manner.
colloquialdescriptionspeople
How it's used
Describes someone who is acting silly, irrational, or lacking focus in a way that is slightly annoying or nonsensical. It carries a lighthearted or dismissive tone rather than implying a serious medical condition. Often used to tease friends who are being hyperactive or making weird jokes.
Examples
He is always acting crazy, I have no idea what he is thinking.
Why are you acting so crazy? Hurry up and get to work.
Common phrases
acting in a crazy way
Common mistake
Avoid using this to describe someone with actual mental health issues, as it is strictly for informal, playful, or mildly critical social situations.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- Directional complementsThe small words added after a verb to show direction of movement, like up, down, out, in, and back. Common in everyday Cantonese.
- DemonstrativesThis and that with 呢 and 嗰, the personal pronouns, and how 哋 turns I, you, and he into we, you all, and they.
- Resultative complementsSticking a result word onto a verb to show how it turned out, like eat until full or look and find. A productive everyday pattern.



