Zombie graffiti" sounds like a fascinating concept. It could refer to graffiti art that depicts zombies or zombie-related imagery, or it could involve graffiti in abandoned or desolate areas, creating an eerie, post-apocalyptic atmosphere reminiscent of a zombie-infested world. This blend of urban art and horror elements could be both visually striking and thought-provoking, sparking conversations about decay, the human condition, and our fascination with the macabre.