IMHO Female privilege is society just treating you a shit ton better than if you were male. If your a male you will likely not experience the shear level of deference and kindness the world shows to females. The world is infinitely kind to me, I am given seats on buses, but before someone else in lines, in general I would say my quality of life is infinitely better simply because society just cares about me more. If I go missing there will be 24 hour news coverage of a smiling brunette and such, I could easily be a national figure of interest, if a man goes missing? Fuck, who cares? In general society cares about me, my feelings, my well being far more than men's.
That isn't to say males are mistreated but males are not given anywhere near the level of deference that females can expect. Heck, in Internet culture there is a whole uproar over how females are treated, when in reality this is what males have dealt with since the beginning on the web, but since the Internet does not offer us our traditional deference, its shocking to some of us.
Then there is institutional stuff, if I were to murder say @
Xarim in cold sadistic blood, pouring bees Nicholas Cage style before burning him in a wicker suite to appease my series of Gods, I'd get a significantly lesser sentence than if Xarim were to do that to me. Heck I am twice as likely to avoid incarceration altogether. If avoidance of punishment for breaking the law isn't a privilege, than the word is meaningless.
ect, I could go on but you asked for one and I gave you a few already.