Living large, bro

Mr. Boy shocked me the other day when he high-fived a friend, which was normal enough, but then cut loose with "Living large, Bro," which is not. Great. We work to keep him away from MTV and assorted cultural trash and he finds and adopts this pimp-talk from Gangsta Rap. I can’t even link to a site with it because the stuff that goes with it is all F-words. I’m debating how to quash it. If he was a teenager, and it was rebellion, that would be simple. I’d just adopt it myself until he realized that it had lost its generational charm and stopped doing it. But at age eight? If I started spouting it, I think that would just encourage him. Cogitate, cogitate.