A fork of Rural Dictionary
When there is a group of two girls and one guy and the guy stands in the middle of the girls.
This is because the meat goes in the middle.
Guy: Aw man, this would be such a cool pic. Guys, stand in a hamburger!
Girl: A what?
Guy: A hamburger. When the guy stands between the two girls, it’s called a hamburger because the meat goes in the middle.