Fat Upper Dick Area. Similar to a F.U.P.A. only on an extremely obese man. A man with a F.U.D.A. will appear from a distance to be sexless or hermaphroditic as their pubic fat will completely mask any genital bulge. F.U.D.A.s have been known to shrink and completely engulf a man's genitals requiring surgery to free them.
That dude hasn't seen his dick in ten years thanks to his F.U.D.A.!