virtual Friday

virtual Friday n.  (also `logical Friday') The last day
   before an extended weekend, if that day is not a `real' Friday.
   For example, the U.S. holiday Thanksgiving is always on a Thursday.
   The next day is often also a holiday or taken as an extra day off,
   in which case Wednesday of that week is a virtual Friday (and
   Thursday is a virtual Saturday, as is Friday).  There are also
   `virtual Mondays' that are actually Tuesdays, after the three-day
   weekends associated with many national holidays in the U.S.