: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.
-- The AI Hackers Dictionary
