Highland Rim Job
The act of getting your asshole licked while high on drugs, high up on top of a mountain or building, or, preferably, both.
Guy: "Since you are down there, I may as well get stoned."
Girl: "What for?"
Guy: "We are on top of a mountain and you are licking my ass. May as well make it a highland rim job."
Girl: "What for?"
Guy: "We are on top of a mountain and you are licking my ass. May as well make it a highland rim job."