Here's a breakdown:
* Literal meaning: It simply refers to an old woman.
* Common usage: It's often used in a sarcastic or ironic way, especially to express surprise or disbelief at something an older woman has done or said. It can be a playful jab, but also potentially insulting depending on the context and tone.
* Similar to: In English, it's similar to phrases like "Oh, you old bat!" or "You old geezer!" which can be used humorously or derisively.
It's important to be aware of the potential for offense when using this phrase, as it can be interpreted as disrespectful or ageist.
It's generally best to avoid using this phrase unless you are very close to the person you are speaking to and are certain they will not be offended.