If you've ever made the mistake of ordering grits in Mormon country, or Scrapple in California, you have questionable taste. To make sure you don't screw up again, Mental Floss put together a 60-piece list of regional foods you should never order anywhere else. The video's even narrated by John Green, the king of the Nerdfighters, a group that either beats up nerds or is made up entirely of them. It's probably the latter. Watch and learn.
Kristin Hunt is a food/drink staff writer for Thrillist and would love to grab cheesesteaks with John Green the next time he's in Philly. Follow her at @kristin_hunt.