动脑筋 dòngnǎojīn to think hard Definitions Defs Origin Strokes Stroke Words Sentences Sents dòngnǎojīn to think hard 动 動 dòng verbnoun to use To make use of; to apply or exercise one's mind, hands, or tools.脑筋 腦筋 nǎojīn brains Brains; mind; mental capacity for thinking, memory, or imagination.dòngnǎojīn to scheme 动 動 dòng verbnoun to use To make use of; to apply or exercise one's mind, hands, or tools.脑筋 腦筋 nǎojīn idea (Colloquial) An idea, plan, or scheme, often used with descriptors for clever or dishonest thoughts.