榆木腦殼 Save Sign in to save words Simplified: 榆木脑壳 yúmùnǎoké ㄩˊ ㄇㄨˋ ㄋㄠˇ ㄎㄜˊ a blockhead a thickhead coll. Character by character 榆(yú)elm 木(mù)surname Mu 腦(nǎo)brain 殼(ké)shell A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0