The foreskin prepuce is a retractable fold of skin that covers the bell end (glans) and PROTECTS it when the penis is not erect. Almost all mammals have foreskins.

Often viewed as ugly or unhygienic by circumcised men who somehow think a dry pink helmet is more attractive than a sheathed member, or uneducated american women who clearly have never heard of a daily hygiene regime ie washing.

Also attacked by religious peoples who overlook the fact that a) man was created in Gods image, which if taken to mean the physical form would strongly indicate God has a foreskin.... Is He unhygienic too?
b) If 'intelligent design' is an answer to darwinism is that a suggestion that God or other creator is a crap inventor when it comes to sexual organ engineering?

an extra portion of skin located at the tip of the uncircumcized penis; increases intercourse tenfold

The best part of the penis!

Now outdated by the new fiveskin.

The fleshy thing that hangs on the end of a penis. Not to be confused with a woman.

the skin that covers your knob when its soft and moves back when you get a hardon.

the extra flop of skin that lollops over the whole of the knob, very satisfying to twiddle

the best thing any male can have

good in masturbation, sex and dicking around

good 4 ten cent trick