"Who dat?" is the shorthand version of a cheer for the New Orleans Saints football team (2009 NFC Champs!). The entire cheer is:
"Who dat? Who dat? Who dat say dey gonna beat dem Saints?"
This phrase has been popularized by the New Orleans Saints, especially this year now that our dominant Saints team is hitting it big on the national stage.
1. A favorite food of kids in the Milwaukee Public School System (MPS) and a Milwaukee classic! Pork shaped into a form kind of resembling a chicken drumstick, but...
Red and green chile sauce together with the same dish.
Sunny P is a local nickname for Sun Prairie. I guess it's a takeoff of the orange juice like drink, Sunny D.