A day that commemorates the assassination of some make believe Jew named Jesus. According to Christian Mythology, that Jew will later rise from the dead, which makes Jesus a zombie.
The worship of Jesus "the zombie" no doubt holds society back as a whole.
"This sure is a good Friday now that Jesus is dead."
"We better not eat meat or else Jesus will come back as a zombie and drag us kicking and screaming to the fiery depths of hell."
"Fuck that. I'm eating a steak."