UFFJ Share definition Flag Something extremely unfortunate, generally of a humorous nature. Acronym for "UnFortunate For Johnny." STEVE - "My wife busted me watching anal fisting porn last night." MARK - "UFFJ." UFFJ by Reechard July 6, 2006 0 0 Get merch Get the UFFJ mug. Buy Now — $32.95 See more merch