tai3 dou1 mun4 mei4剃刀門楣剃刀门楣
Jyutpingtai3 dou1 mun4 mei4
Yaletai dōu mùhn mèih
Definition
An allegorical saying describing a highly exploitative business that squeezes every penny from customers.
colloquialmoneypeople
How it's used
This idiom relies on the imagery of a razor constantly shaving a door lintel until it wears away, symbolizing a business that extracts profit from both incoming and outgoing transactions. It carries a strong negative connotation of greed and heartless exploitation. While historically rooted in the financial chaos of the late 1940s, it is still understood today as a colorful way to describe someone or a business that is excessively stingy or predatory.
Examples
That shop is such a rip-off, they charge so much even for small items.
Don't be so exploitative, we are all neighbors here.
Related words
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- NegationHow to say no, not, didn't, and don't in Cantonese. The four main negation words and when to use each one.
- Numbers and moneyCounting, talking about money, and asking how much things cost. Includes the two words for two and the everyday words for dollars and cents.
- 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.



