When you chew two foods at the same time by taking a bite of an entree with a bite of the side. I.e. a hamburger and French fries, a hot dog and macaroni salad, steak and mashed potatoes, or oatmeal and toast.
"I ate schwab on the fourth of July."
"This is really good schwab."
"My favorite schwab is a grilled cheese and bean with bacon soup."