Like say where they came from and do some American Idioms and some from other countries.
My Favrote is "Like Shooting fish in a barreal"
I have no Idea where it came from but it sounds funny. Mabye shoting fish was a sport and someone found that if they were in a barreal it was really easy. (well the pressure wave kills the fish if it is in a container so you don't even need to hit the fish)