noun phrase. An affliction as common as swine flu or being a buttmunch.
Real citation: "So there you have it Ms Harker’s list of Fantastic Seductive Vampires, it is by no means exhaustive, however is guaranteed to give you a serious case of Vampire Moistness Disorder."
(Oct. 10, 2009, Musings Across a Continuum, http://www.musingcontinuum.com/2009/10/10/vampiric-sexpots-you-cant-handle-all-the-lushness-i-have-cause-its-so-fanaglicious/)
Made-up citation: "I don't understand vampire moistness disorder... I'm only attracted to smurfs."