木头脑袋

Traditional (Taiwan): 木頭腦袋

mùtounǎodai ㄇㄨˋ ˙ㄊㄡ ㄋㄠˇ ˙ㄉㄞ

    • slow, dull person
    • blockhead

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
wooden head
Meaning
A slow, dull person who doesn't catch on. Insulting or teasing.

Sources