斗大的字不识一个

斗大的字不识一个

Literally means:

very big words, but don't know one

Actually means:

receive little education

斗, a traditional container made of wood or bamboo (one dou equals 10 Chinese litre in volume). Dou Da De Zi means a Chinese character that is as big as a Dou.

This phrase means that one is illiterate or knows few words. It also refers to one's poor educational background.

斗，用木头或竹子做成的容器（容量等于10升）。斗大的字，很大的字。

斗大的字不识一个，形容不认识字或识字很少。也指文化水平低。