haa6 lou4 dung1 sin3夏爐冬扇夏炉冬扇

Jyutpinghaa6 lou4 dung1 sin3
Yalehah lòuh dūng sin

Definition

Wasted and ineffective efforts that do not suit the needs of the situation; literally, a stove in summer and a fan in winter.

colloquialother

How it's used

This idiom functions as a metaphor for providing something that is useless because it is out of season or context. It highlights a lack of practical judgment rather than just a simple mistake. It is often used to criticize suggestions or gifts that show a complete disconnect from current needs.

Examples

Related words

Common phrases

Common mistake

Learners often mistake this for a literal description of weather-related items, but it is strictly used as a metaphor for poor timing or useless efforts. Do not use it to describe actual seasonal items like air conditioners or heaters.

Grammar color guide

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Adjective
Adverb
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