Grey duck

Out here in MN, people have different saying for certain things. One example: pop=soda, a sucker=lolipop. One thing that I've gone round and round with a coworker on is the game Duck, Duck Goose. Out here they call it Duck Duck Greyduck. Don't ask me where it came from. Another co-worker isn't from here either and he totally agrees with me...IT'S DUCK DUCK GOOSE! Here's the shirt to prove it! Oh yes, and the little girl wearing it is super cute!