So when I was at the beginning of my exchange year at an American school some nice girl asked me: "Do you eat cock?" Now, I knew that a cock is a male chicken and I have been known to enjoy eating "Hähnchen" (whole grilled chicken, and Hahn is a male chicken), but something about the way the question was asked made me suspicious and I didn't answer. I have since learned what it means.
I later visited Key West where one could buy t-shirts with the picture of a male chicken with "Rules!" written under it.
Now in Germany that part on the male anatomy is never compared to chickens (to sausages maybe), but we have t-shirts like that too:
These dogs are called Möpse, does anybody want to guess what else is?