The act of two men greeting each other by touching penises. The salutation does not require touching tips, but rather any contact of penises.
I hadn’t seen my brother in law in two months, and we were so excited we went to garage, got 2 Busch lights, and did a Wisconsin handshake before catching up on what’s new.
The sexual act of eating Mac and Cheese off of someone's back. A form of food fetishism. Popularized mainly in Wisconsin but also known in Iowa, and some parts of Missouri.
"This girl I was seeing was weird as hell, she wanted me to eat mac and cheese off her back"
"Oh yeah, that's WisconsinMacaroni. Gotta take those bro."