Surprise Barrel Roll

The act in which mid sex the male, in missionary position, rolls continuously, still penetrating his partner and thrusting.

Shane: "Hey Rick!"
Rick: "What now Shane.."
Shane: "Guess what I did to Laurie last Tuesday?"
Rick gives him a serious face and asks,"What did you do to her Shane?"
Shane: "I gave her the famous Surprise Barrel Roll on her for 10 seconds!"
Rick turns around and mutters to himself,"I was only able to do it to her for 2 seconds..."