From a discussion on Tumblr:
Privilege means it doesn't even occur to you that something was easier for you
Privilege, in the sociology-type sense we're talking about here, is a thing that society does, not something the individual sets out to do. Belonging to a privileged group doesn’t mean you’re a jackass who’s deliberately ridden over other people, it doesn’t mean you were born with a silver spoon and life's been all sunshine and roses for you, and it doesn’t mean you’re a bad person.
It just means in one particular aspect of your life, things are easier for you in ways you don’t even notice. Often it means there are experiences you don't have rather than ones you do, and you don't know what you've never had.
Men don't know having yobbos in passing cars scream "show us your tits!" when they're walking down the street, for instance, or random internet strangers getting creepy the moment you log on with a feminine username. (These days I'm more judicious about the online neighbourhoods I hang out in.)
The point of privilege is you don’t notice it until you know what it is. And you won’t learn unless you read about it and talk to people with different points of view. So calm down and listen, instead of getting all prickly and huffing “how dare you suggest I’ve had it easy just because I’m a straight white cis male neurotypical dudebro?”