road pizza UK /ˈɹəʊd ˌpiːt.sə/US /ˈɹoʊd ˌpit.sə/ noun2 •(slang, humorous) roadkillIn the U.S. you can even tell what part of the country you're in by what flavor road pizza is served up. In the Northeast it tends towards farm animals. In the Mid-Atlantic it's mostly pets. — 2008 •(slang, humorous) person injured in a car accident whose body is severely mutilated formsroad pizzas