Leggo my what now?

My wife and the kids went shopping and picked up some frozen Eggo Waffles.  
When I get home, I see the boxes from Costco in the hallway:
dad: "Hey family! We have eggos!!!"
kids: "We have what?"
dad: "Toaster Waffles!"
kids: "oh."

Not sure if this is a missionary kid thing, or just that our kids have cheap parents.
I think it's a mixture of both.  Before we left for PNG, we bought generic brand (still do usually)
and they've never really been exposed to TV commercials... so  "leggo my eggo" is not in their vernacular.