Facebook is just plain stupid. They'll put up a picture and ask if you know what this is. The latest outrage is this picture.
That's a mermite container. I have no idea where they got the name, but it was ubiquitous in field in field units. That's where you got your hot chow, usually from a field kitchen, set p at the battalion trains.
Have I ever eaten a meal from one? My Gawd, thousands. When the evening log-pack showed up with mermites on board, you knew that you were getting hot chow. I've eaten on the hood of jeeps, later, Humvees, and occasionally on the front slope of a tank.
Yeah, I know what a mermite looks like.