What Is Dick Cheese or Smegma, Anyway?Īccording to Steixner, smegma is “a healthy, sterile concentration of cells that have come off of the inside of the foreskin, as well as a small amount of glandular secretion that comes out of small glands on the foreskin.” The majority of the stuff, then, is just dead skin mixed with some fats and fatty acids, but what makes it unique is actually down to the nature of the foreskin itself. To help us, we reached out to a certified smegma expert, Brian Steixner, director of men’s health for the Jersey Urology Group, to ask what exactly smegma is up to down there. And so, as with so many other penile mysteries we’ve looked into ( what’s in your ejaculate, for example, or how to pee with a boner), we decided to look under the foreskin and find out the facts of dick cheese for ourselves.