Some examples of what I mean are, the whole "honor" issue which make it somewhat ok for a male to have pre-marital sex but if a female did the same thing the whole community will think poorly of her family. Like in our neighborhood we knew that the sons of our neighbors were having sex and nobody thought it was a big deal and said "oh he's young and a GUY". But if a girl dared hinting that she had a boyfriend (with no sex) she would ostracized and told "your brother is a BOY you're a GIRL".
Another example is that it's not acceptable for a family to look for suitor for their daughter while it's perfectly acceptable to look for a good bride-to-be for their son.
There's a hadith that demonstrates this kind of hypocrisy perfectly.
Some guy comes to Muhammad and asks him if extra-marital intercourse is lawful and Muhammad responds by asking him, 'Would you like that for your sister/daughter/mother?'
Which is funny coming from a man who had extra-marital sex and allowed keeping women as sex slaves and war booty. I wonder if he'd like that for his female progeny?
Women aren't allowed to do it because men don't like the idea of it, but men, of course, can be as libertine as they want.