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金魚腦 Jīnyú nǎo

Posted on July 22, 2022August 9, 2026 by tiffany

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  • 名詞名词 NOUN
  • 例句例句
  • 對話对话
  • 辨析辨析
  • 快閃卡快闪卡
  • 跨語言跨语言

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金魚腦

Goldfish Brain

金魚腦金鱼脑 · Jīnyú nǎo
In one line
Someone with the memory of a goldfish — forgets things fast, usually said with affection rather than criticism.
Definition

名詞名词 NOUN

Literally “goldfish brain.” Just like the English phrase “the memory of a goldfish,” we use it for people who forget things quickly and have a poor memory.

One grammar note worth remembering: normally a noun follows 有 yǒu (“to have”), but in this phrase we use 是 shì (“to be”) instead — 是金魚腦是金鱼脑, not 有金魚腦有金鱼脑.

It’s not a rude expression. It gets used constantly between friends (pair it with a laughing emoji, not an angry one) or self-deprecatingly about yourself.

Examples

例句例句

他tā老是lǎoshì忘記wàngjì我wǒ的de生日shēngrì,我wǒ發誓fāshì他tā一定yídìng是shì金魚腦jīnyúnǎo他tā老是lǎoshì忘记wàngjì我wǒ的de生日shēngrì,我wǒ发誓fāshì他tā一定yídìng是shì金鱼脑jīnyúnǎo
He always forgets my birthday. I swear he has the memory of a goldfish!
你nǐ知道zhīdào我wǒ是shì金魚腦jīnyúnǎo嘛ma,可以kěyǐ再zài提醒tíxǐng我wǒ一次yí cì嗎ma?你nǐ知道zhīdào我wǒ是shì金鱼脑jīnyúnǎo嘛ma,可以kěyǐ再zài提醒tíxǐng我wǒ一次yí cì吗ma?
You do know I have a short memory, so could you please remind me again?
她tā是shì有名yǒumíng的de金魚腦jīnyúnǎo,你nǐ最好zuìhǎo出門chūmén前qián再zài提醒tíxǐng她tā一次yí cì她tā是shì有名yǒumíng的de金鱼脑jīnyúnǎo,你nǐ最好zuìhǎo出门chūmén前qián再zài提醒tíxǐng她tā一次yí cì
She’s a goldfish brain as we all know. You’d better remind her again before you go out.
Dialogue

對話对话

A
在zài忙máng嗎ma?我wǒ有yǒu事shì要yào跟gēn你nǐ說shuō。在zài忙máng吗ma?我wǒ有yǒu事shì要yào跟gēn你nǐ说shuō。
Are you busy? I have something to tell you.
B
嗯èn?所以suǒyǐ你nǐ要yào說shuō什麼shénme事shì?嗯èn?所以suǒyǐ你nǐ要yào说shuō什么shénme事shì?
Sure, what’s on your mind?
A
我wǒ忘wàng了le…我wǒ忘wàng了le…
I forgot…
B
你nǐ是shì金魚腦jīnyúnǎo嗎ma?才cái 10 分鐘fēnzhōng前qián的de事shì就jiù忘記wàngjì了le!你nǐ是shì金鱼脑jīnyúnǎo吗ma?才cái 10 分钟fēnzhōng前qián的de事shì就jiù忘记wàngjì了le!
You have the memory of a goldfish! How could you forget? It was just 10 minutes ago.
A
真的zhēnde想xiǎng不起來bù qǐlái,只zhǐ記得jìde有事yǒushì要yào跟gēn你nǐ說shuō真的zhēnde想xiǎng不起来bù qǐlái,只zhǐ记得jìde有事yǒushì要yào跟gēn你nǐ说shuō
I really don’t remember what I was planning to say. All I remember is that I had something to tell you.
B
我wǒ開始kāishǐ覺得juéde金魚jīnyú的de腦nǎo可能kěnéng比bǐ你nǐ好hǎo了le我wǒ开始kāishǐ觉得juéde金鱼jīnyú的de脑nǎo可能kěnéng比bǐ你nǐ好hǎo了le
I think that maybe goldfish have better memory than you.
Don’t mix these up

辨析辨析

Chinese has a few different ways to call someone forgetful or scatterbrained — they land in different places.

TermWhat it actually meansTone
金魚腦金鱼脑jīnyú nǎo Forgets specific things fast — the goldfish comparison is the whole joke Playful, affectionate
健忘jiànwàng Generally forgetful — can describe age-related or chronic forgetfulness Neutral, more formal
恍神huǎngshén Zoning out or spacing out for a moment — not about memory at all, just not paying attention Casual, momentary
少根筋shǎo gēn jīn “Missing a tendon” — scatterbrained or oblivious in a broader sense, not just forgetful Teasing, can sting a bit more

The quick test: 金魚腦金鱼脑 is specifically about forgetting things, 恍神恍神 is about attention in the moment, and 少根筋少根筋 covers a wider kind of obliviousness.

Flashcards

快閃卡快闪卡

Tap a card to flip it.

金魚腦金鱼脑
jīnyú nǎo
Goldfish brain — forgets things fast, affectionate teasing
健忘
jiànwàng
Forgetful — neutral, can describe a real memory issue
恍神恍神
huǎngshén
To zone out — momentary, not a memory problem
少根筋
shǎo gēn jīn
Scatterbrained / oblivious — broader than just forgetting
Beyond Chinese

跨語言跨语言

The “short memory” stereotype travels well — Korean and Japanese both have their own version of it.

Korean · 금붕어
기억력이 금붕어에요 (goldfish memory)
또 까먹었어요? 기억력이 금붕어에요?
Forgot again? Do you have a goldfish’s memory?
Japanese · 鳥頭
鳥頭 (toriatama, “bird head”)
鳥頭で、昨日の約束を忘れてしまった。
I have a bird brain — I forgot yesterday’s promise.
Actually though
It’s a common belief that goldfish have famously short memories — 10 seconds in the US, 2 seconds in Europe, 3 seconds in Korea and Taiwan, depending who you ask. Scientists have since shown this isn’t true at all: goldfish can actually remember things for at least five months.
Do you like it? 🙂
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