wui3 taan4 m4 wui3 coeng3會彈唔會唱会弹唔会唱

Jyutpingwui3 taan4 m4 wui3 coeng3
Yalewui tàahn m̀h wui cheung

Definition

All talk and no action; only knowing how to criticize without being able to do any better.

colloquialpeopledescriptions

How it's used

This phrase is a vivid way to criticize someone who is full of theories or criticisms but lacks the practical ability or willingness to execute them. It carries a slightly mocking tone and is often used when someone is being armchair-critical of others' work. It is distinct from simply being lazy, as it specifically highlights the gap between verbal posturing and actual performance.

Examples

He always talks about starting a business, but in the end, he is all talk and no action.
You only know how to talk but not how to do it, when will you finally start working on it?

Common phrases

only know how to talk but not how to do

Common mistake

Learners often confuse this with general laziness, but it specifically targets the discrepancy between what someone claims they can do and what they actually demonstrate. It is not used to describe someone who is simply tired or unmotivated.

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