This person generally has so many cousins and aquaintances that he can't keep track of who knows who - he is only confident that he knows everyone. Or at least knows someone who knows someone who knows everyone.
Johnny: My buddy Powers is having a Halloween party on Saturday, should be epic.
Harsh: "My Buddy Powers"? Dude, I've met the kid 100 times, you can just say "Powers".
Johnny: Fuck yo couch. That's what my buddy PJ always says.
Harsh: Jesus christ.
My brother got one for christmas one year, that doll is just creepy. Like a dolled up version of chucky.