When your sexual partner is tied up or handcuffed to the bed. When its dark slowly place your butthole over his/her face and let out a load. Force it down their thoats.
Tom: Woah, Mike.. im really sorry your wife died yesturday, perhaps you'd like to come to my basement. i live alone.
Mike: No thanks, im okay, i actually killed my wife when i pulled a "Dark Choke." The last words she mumbled were, "What the fuck did you eat Mike, it's very fruity."
Tom: Do the cops know this story?
Mike: Me either