I discovered self pleasure at a young age. I wasn't circumcised, and I would rub my groin area on the floor fully clothed, with my penis flaccid. I would sway my hips back and forth on the carpet till a pulsing wave shot through my body. At the time I had no idea what I was doing, and I thought I was the only person in the world that could produce such feelings.
Being so young at the time meant that I had no ejaculation; just the dry pumping action through my penis, so the messy clean up was not an issue. I discovered hand masturbation probably around the 5th grade, and that was far more pleasurable. The floor method only lasted about a minute, while the hand method was much longer.
I recently was circumcised over the summer because my foreskin was a little tight and could not be retracted when I had an erection. I couldn't masturbate for about three weeks after the surgery. I had been a frequent masturbator, until the operation. I hadn't had an orgasm in what seemed like forever, in fear of ripping the stitches.
After a while I decided to use my floor method and test the waters. The idea seemed safe because this would only push my penis side to side, rather than up and down, which would probably rip the stitches. It took about 15 seconds of pumping my legs till I saw stars. I pulsated for what seemed like 20 seconds, and the mess was all over my pants.
That was the most intense orgasm I ever had. The floor method is actually an awesome way to get off, and it can be for uncircumcised or circumcised, but you have to remain flaccid. This isn't hard because the weight of your body on your groin is enough to make it so the blood wont flow to your penis. It only lasts for a minute, and the mess is gross, but try it out.