Godfiti
(n.) -- Witty, pithy slogans written on outdoor walls that either denigrate the existence of God or the gods, or praise God or the gods, or sometimes do both.
I saw this Godfiti written on a wall the other day.
"God is dead." -- Nietzsche
''Nietzsche is dead.'' -- God
"God is dead." -- Nietzsche
''Nietzsche is dead.'' -- God