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