a whole day where you don't talk about "Anti Fur Day" or whatever the fuck is going on anymore.
Person 1: "Oh crap! Tomorrow's Fur Day-"
Person 2: "and today is Shut The Fuck Up day! so keep it down with those holidays, will ya?!"
Shut The Fuck Up Day takes place on April 17 where everyone stops talking, and whoever talks is automatically a homosexual.
Oh shit it's Shut The Fuck Up Day time to shut the fuck up