A type of sandwich made from thinly sliced liver cooked with onions and limburger cheese.
Comes from a story about a US Airforce Airman who cut a hole in his USAF dorm mattress, tapped the edges and covered it with plastic, packed the hole with two liver filets, and fucked that meat hole on the regular. Filled with stinky cheese and shame.
Hey, did I tell you that my roommate was fucking some raw meat shoved in a hole in his mattress? Oh yeah, a new jersey cheesesteak huh? Thats damn good sandwich man.