Skinny

The standard image of American fast food outlets is that once you've ordered your meal, the server will then ask you if you want to make that "Extra Large" or "Supersize" your order. Today, I had lunch in Potbelly's, a rather nice sandwich chain, and when I ordered my "Meatball Sub on Wheat" was asked if I wanted to make that "skinny" - with one third less calories than usual.