The day of December 1st, following the month of No Nut November, where every male is encouraged to masturbate, to relieve the testicular tension of the previous month.
Person 1: Bro can you come to the gametomorrow.
Person 2: Nah sorry bro it’s International Wank Day.
Person 1: Damn bro why didn’t you remind me?
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi