Goblin Screwdriver
When having sex, the man lies on his back with erect cock upwards, whilst the man or woman having sex with him jumps into the air, bends over in air, and proceeds to 360 spin his/her asshole around said cock.
Man 1: Damnit, susan broke my dick off doing a goblin screwdriver, she needs aim!
Man 2: lol
Man 2: lol