I have a friend who is heavily into body modification (don't ask) and classical philology (teaches college-level Latin) who recently got an, uh, dressing ring. (All beating around the bush aside, I've been told by those in the know that "Prince Albert" is a popular male genital piercing. Google it if you must. Most definitely NSFW.)
Now we, a bunch of friends, want to present him with a t-shirt as a gag gift for his upcoming birthday. How would I refer to this, or really any body piercing in Latin? A pierced belly button, e.g.? "Umbilicus perforatus" sounds like a medical condition. Punctus? Anulatus? Would, say, "Mentula mea anulata" on a t-shirt be understood?
If all else fails, we'll simply go with the more subtle "ILLE QUI DOLET VINCIT" (He who suffers wins) :-)