More often than not, I find such men very aggressive. Their humor hides their aggression. They use their humor to attack other people, battering down at their social standing. If you stay silent, you get banged down, and if you object, you have no sense of humor. Either way, they win.
Mercifully, I've met few such people. At the moment, none are in my regular social circles. At work, there's one of these guys in another department, and damn, he gets under my skin, so I don't deal with him. Still, it all reminds me of just how much they are blazing assholes.