Spy Wednesday
n (Ecclesiastical Terms) (in Ireland) the Wednesday before Easter, named for Judas' becoming a spy for the Sanhedrin
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014