An old Chinese woman.
In the Chinese community as a woman grows older they are respectly addressed accordingly.
Some commonly used terms that I know of, from young, old, older and oldest are:
Xiao jie, siu cheh, ah nia, leng lui, aunty, tau keh soh, lau zhar bor (a bit crude), ah mah, lau ah mah, ah por por, lau t'ai por, lao nai nai.
Do add on to the list if you know of any.
A light comedy I like that honours old women is 'Liang Po Po-The Movie featuring Jack Neo.