What is premature ejaculation? -
Premature ejaculation is early/rapid ejaculation. If you ejaculate in under 2 mins of penetration, then you suffer from premature ejaculation. It effects 20-40% of men. There are many causes of PE, such as physical and mental. There are also many treatments, only a few show results though. You can find more info at
http://www.cureprematureejaculation.org
Premature ejaculation is when a guy ejaculates in a very short amount of time. 9 minutes is a pretty good average for ejaculating. It usually happens during masturbation when people get to used too doing a -quicky-. There are sites claiming to cure it, but it can be done simply by practicing self control.
P.S. You could have saved a few points by just doing a web search on it. Wikipedia-s an awesome place to find stuff.