[He's a dude, but Barney decides not to make fun of him yet. He's not white-knighting, he's just asking for a bit of info.]

It's like some kind of alien world to me, bro. I've had a few drinks thrown in my face, granted, but I've never been universally treated like the scum of the earth because I'm looking to pair off with some ladies.

Cockblocking is pretty much what it sounds like. Standing between a guy and his chosen tango partner to prevent coupling. It's super douchey.