腦洞大開

简 脑洞大开 · 繁 腦洞大開
Mandarin · pinyin nǎo dòng dà kāi

Meanings

  1. imaginative
  2. to have one's mind buzzing with ideas
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Characters in this entry

腦
Look up this written character
洞
dòng · cave, grotto; ravine; hole
大
dà · big, great, vast, large, high
開
kāi · open; initiate, begin, start
脑
nǎo · brain
开
kāi · open; initiate, begin, start
Written characters and their own readings; the entry’s pronunciation is shown above.

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Mandarin tones

3–4–4–1 · nao3 dong4 da4 kai1

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Wiktionary English definitions · Chinese section

Independent source senses for this spelling, with usage labels retained. Not matched to the pronunciation above.

verb

  1. (neologism, slang) to greatly open up one's eyes (said of unusual, weird ideas)

Source page · dump 2026-09-02 · Contributors & history

Wiktionary contributors · CC BY-SA 4.0 · source & license · Data pack