War Banter and tactical thread

I've got a question that I hope someone can answer. The last week or so I've spent many hours inside the mall, and I keep hearing survivors talking about "bags of dicks". Is this a new term used everywhere or is this a Giddings thing? "Kevan and his update can suck a bag of dicks!", "Go eat a big bag of dicks zombies!" and "You zombies suck a bag of dicks!" I've heard it from at least 10 different survivors, and I really wish I'd thought to take screen shots, cause I always laugh. "Bag of dicks"? Who says that? Oh, so I guess my question is, do those inside Giddings say that all the time, or was this just a strange series of isolated incidents?