名詞
年紀大、精神差、智力下降嘅人；略帶侮辱成份（量詞：個） (derogatory) a person who is old and stupid
阿爺年紀雖然大，但係唔係老懵懂，你唔好呃佢啊！
阿爷年纪虽然大，但系唔系老懵懂，你唔好呃佢啊！
aa3 je4 nin4 gei2 seoi1 jin4 daai6, daan6 hai6 m4 hai6 lou5 mung2 dung2, nei5 m4 hou2 aak1 keoi5 aa3! Although Grandpa is old, he is not old and stupid, don't try to cheat him!