A rare hereditary condition that unfortunately has no cure. It affects the ability of the sufferer to move around quickly and wear tighty whities. It is also known to instigate "peeking" among other males while using public urinals. Consequently if you are infected with Longdongtinitus, most of your sexual partners might need to be taken to the emergency room after penetration.
Dirk - "Just got back from the Pediatric Gynecologist today and I have some bad news, I've been diagnosed with Longdongtinitus"
Dumb Slut - "Oh nooooo, what are you going to do?"
Dirk - "Just drink this ruffie colada and I'll show you"