A word or phrase unique to the big small town of St. Louis, Missouri. Examples:
Hoosier: white trash

toasted ravioli: small raviolis deep fried till crispy

gooey butter cake: a breakfast cake, about 10 x 10 inches,
filled with a buttery custard and covered in powdered
sugar.

pork steak: a slice of pork butt, about half inch thick,
bone in, slow cooked on a barbeque pit and smothered in
Maull's barbeque sauce

'Where'd ya go to high school?': the first question asked
by one native to another person they are meeting for the
first time who also is a lifelong St. Louisan.

when you've done something so cringe you can't stop replaying it in your head and it stops you from getting on with your every day life