First answer: "A woman is someone who is identified as a woman. That's why people say it's socially constructed"
Me
"But that's circular. There must be a definition of what a woman is for anyone to identify or be identified as one"
Second answer: "If you give any definition of a woman, there are people who you could identify as "a woman" and who anyone on the street would say - "That's a woman" - and they would not fit that definition"
So... what, we can't define woman because we can't actually define the word in a way that encompasses men? So let's not bother? I don't have enough words or brain to take that any further. Just wow.