The phrase "Sweet mother of potatoes" belongs to Scott Adams. I claim no ownership to his creation.
Basically, this game is like a normal conversation, except the first sentence has to be, "Sweet mother of potatoes!"
Example:
Person 1: Sweet mother of potatoes! I just thought of a billion-dollar idea!
Person 2: Sweet mother of potatoes! So did I!
Person 3: Sweet mother of potatoes! I just realized the company owns all of my ideas!
I'll start.
Sweet mother of potatoes! After producing such awful movies as the Star Wars prequels, I'm astonished that Lucas and Spielberg created a wonderful movie like Kingdom of the Crystal Skull!