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.

[glossary]