die hard. literally

Wouldn't it drain out due to gravity...?

A spider walks by pumping blood into each of its legs, so when it dies, the legs curl up to the classic dead spider position. I believe it's the same way with a man's penis.

http://en.wikipedia.org/wiki/Rigor_mortis Everything stays as it was.

That actually takes a bit to set in and it's not permanent or funerals would be way creepier.