If you're witty and have a sharp tongue and a microphone, you can get the man-children to shut the hell up by beating them at their own game.
I remember having this exchange with some boastful and loud one (I think his name was madcow.. I don't remember) in front of my 13-year old cousin when playing Halo: Reach.
He decided he'd want to have some verbal trash-talk confrontation with me, since I'm... there? I don't know for sure.
I forget the entirety of the exchange, but I do remember rhetorically asking him: "So who's your girlfriend? Your left hand or your right hand?"
He was silent the entire game, and left the end-game lobby as soon as the game ended.
I have yet to encounter people looking to start verbal fights with total strangers on PSN ever, but on Halo and CoD, it is practically a rite-of-passage to have an encounter with at least one.
Also, I'm not the kind of guy who values the merit of males based on their ability to attract mates, since that is such a very shallow and primitive means of measuring a man's worth, yet every attack singles and "virgins" all the time, it's friggin' hilarious to see them still acting like it matters.