A man a woman keeps around for platonic favors and services as well as for attention. He usually sticks around in the hope he'll some day get with her.
A place where wild orgies are held. It stems from Roman roots, because they had random group sex all the time. All the fucking time. Because of this, some dumbshit Romansaid hey lets make a building to have orgies in! It then became the Roman standard for emperors to try to construct the grandest Orgitoriums to hold the most hot italian bitches. They constantly competed with each other, thus filling rome with many such Orgitoriums. Many of these still survive today, but be careful where you step ;)
Sextus: Hey Octavius lets go to the Orgitorium to celebrate!
Octavius: Rofl YAY!
A guy who secretly loves his female 'friend', and may go out of his way to accommodate her (couch-mover). Either the guy was shot-down early on and was placed in the friend-zone, or he never had the balls to ask her out and inadvertently placed himself in the friend-zone.
Peter wasn't actually a real friend, he was just another orbiter of yours. That's why he was being an ass to your new boyfriend.
Peter is such an orbiter. Look, he's moving a his hot friend's couch on his back!