St. Totteringham's Day is the day celebrated by Arsenal F.C. fans when Tottenham Hotspur can no longer finish above Arsenal F.C. in the English Football League by virtue of not being able to catch their rivals, even if they win every remaining game.

Due to its very nature, St Totteringham's Day is moveable and can occur at varying times during the season based on the respective fortunes of Tottenham Hotspur and Arsenal F.C..
In 2007 it is anticipated that St. Totteringham's Day will fall on Saturday 21st April when Arsenal F.C. travel to White Hart Lane; home of the Tottenham Hotspurds.
by Makams April 18, 2007
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St Totteringham's Day is an event that has occurred every single year since the 1995-96 English Premier League season. Essentially, it is the day, usually happening in April or May, where it is mathematically impossible for Tottenham Hotspur (hence the name TOTTEringham) to finish higher in the league table than Arsenal - their North London rivals.
In the 2015-16 season, Arsenal shockingly passed Spurs on the last day of the season to finish 2nd. Thus, their fans celebrated St. Totteringham's Day.
by Gus Fring Dies June 22, 2016
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Redundant term that apparently refers to Arsenal FC exceeding the points total of Tottenham Hotspur in the league.
-Archaic Br. English
Remember when Arsenal used to win games?”
Yeh, and WTF is St Totteringham’s Day?”
by poobahbay December 16, 2020
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