Shiny new American spoken language adjective phrase informal
Wow, look at your bike! It is shiny new!
What do you want to do with my shiny new car?
Used to describe something completely new
Very clean and tidy.
If someone has a cast iron stomach, they have a strong stomach that can digest unusual food and even bad food without being ill.
Jimmy must have a cast-iron stomach, when he drank milk with lime juice and felt perfectly fine afterward.