Ahjumma, in Korean, means generally refers to as "auntie" that has no direct relations to you. Ahjummas are generally the lady who asks you if you're married yet. They seems to know everything about you without talking to you. They would jaywalk without looking at the traffic, and instead yell at the bus driver for honking at them. Ahjummas would wear what makes them comfortable, say what comes to them without filter, and do what feels right to them. Ahjummas just don't care.