Harry Murphy

Where you climb on top, do absolutely nothing and prematurely get off. Named after the Murphy of Newtown. Aka the "Yawning Position."

Girl: "You're really lame in bed."
Guy: "No, I'm just doing the Harry Murphy!"
Girl: "Great.. I've heard of that. Does that mean you're going to prematurely get off too?"
Guy: "Yeah baby, just like the Murphy of Newtown."