满嘴骂骂咧咧的好姑娘
[măn zuĭ mà mà liĕ liĕ de hăo gū niáng]
Literally means 'A good girl who constantly curses.' Despite her coarse language, this netizen might identify as still holding onto goodness within. It's used here to portray a strong-willed person who uses rough speech but maintains a moral integrity.