peen

hamara, sorkka The (often spherical) end of the head of a hammer opposite the main hammering end.
To shape metal by strike striking it, especially with a peen.
puhekieltä penis Penis.
2009, Danny Evans, Rage Against the Meshugenah: Why it Takes Balls to Go Nuts, New American Library (2009), ISBN 9780451227119, http://books.google.com/books?id=MXlJusLUVD0C&pg=PT188 unnumbered page:

With all due respect (and that may be very little), the real truth is that being a dad is sometimes an imposition of pain far worse than any up-the-peen catheter could ever deliver.

Where to touch a man that will drive him wild every time (Hint: It's probably his peen.)

It's so quiet you could hear a peen go soft.