POETS day
POETS day is a term used by workers in the United Kingdom to refer jocularly to Friday as the last day of the work week. The word "POETS" is an acronym for "Piss off early, tomorrow's Saturday": hence Friday becomes "Poets day". It is tradition to begin the POETS day at 3.30PM. Variations on this are "Punch out early, tomorrow's Saturday" (referring to a manual punch time clock), "Push off early, tomorrow's Saturday" and "Push off early, tomorrow's Sunday" (based on the old 6-day work week).
It also is a backronym, to be read as in "A Poets Day Dream."The Waterloo Engineering Society at the University of Waterloo, has an on-campus pub named POETS The official expansion of the name is "Piss on everything, tomorrow's Saturday".