Vacationitis means: A lack of concern in regard to any one’s obligations during the weeks or months before a vacation. Wearing capris or jeans to work, flip-flops or Uggs at home, as well as a complete lack of grooming or makeup are some of the physical symptoms. The afflicted will begin to accumulate dishes in their sinks and answer most questions with “Uh, that’ll be later.” It can happen at any time, from the day of vacation planning to the hour before departure. (in Community Dictionary, added by Santos Kirk)