榆木脑壳 yúmùnǎoké blockhead Origin Definitions Defs Strokes Stroke Words Sentences Sents 榆木 yúmù stubborn; slow-witted (figurative) blockheaded, typically as a modifier in phrases like 榆木疙瘩 yúmùgēda or 榆木脑袋 yúmùnǎodai脑壳 腦殼 nǎoké head (colloquial) the human or animal head; skull; cranium