A conversation I had in the UD bathroom stall with my son:
"Mom! Who's that?"
"Just someone else using the bathroom."
"Is it Uncle Pat?"
"No, this is the ladies' bathroom. Uncle Pat doesn't use this one."
"I think it's Uncle Pat. Is this bathroom not too dirty?"
"No, it's pretty clean."
"I just goed pee. Mom, I was trying to gerk Annie and she was trying to gerk me!"
"It's a game. You play gerk."
Turns out "gerk" is played by hitting someone while simultaneously saying "gerk." I think I know who came up with that one...