老lou5懵mung2董dung2

English

1. (derogatory) a person who is old and stupid

粵語 — Cantonese

1. 年紀大、精神差、智力下降嘅人；略帶侮辱成份（量詞：個）

Examples

• 阿爺年紀雖然大，但係唔係老懵懂，你唔好呃佢啊！

  Although Grandpa is old, he is not old and stupid, don't try to cheat him!