motor oil
An exceptionally thick and bitter coffee enjoyed by military personnel all over the world. Usually brewed from the cheapest coffee in the dirtiest pot available.
Example:
Bill: "Hey Joe, you have the watch tonight get some sleep.".
Joe: "Nah, I'm good, got some of Cheifs Motor Oil to keep me runnin."
Bill: "Hey Joe, you have the watch tonight get some sleep.".
Joe: "Nah, I'm good, got some of Cheifs Motor Oil to keep me runnin."