A couple, often just married, gets ready to make love. They turn off the lights, and a few seconds later, the girl says, "Oh, (insert guy's name)!", and she says it so quickly, you wonder if the guy can even move that fast. Unless it's meant to be something a little more innocent that will lead to more, but we wouldn't see, would we? A Discredited Trope (or even a Dead Unicorn Trope), given that it was meant to imply love making without actually showing anything. Sometimes subverted by having "guy's name" be someone else entirely, often meaning that the other guy somehow got in the room.