榆木脑壳 Traditional 榆木腦殼 yú mù nǎo ké 🔊 a blockhead; a thickhead + Keep this word Meanings yú mù nǎo ké 榆木腦殼 (coll.) a blockhead; a thickhead Its characters 榆yúelm木mùtree脑nǎobrain壳qiàoshellHSK 7–9