PvZ is the common Russian shorthand for Plants vs Zombies, the tower-defence game built around defending a lawn from waves of zombies with garden plants. In Russian-speaking meme and gaming circles, saying you are sick with PvZ has become a shorthand joke for being completely hooked on the game, rather than a literal illness. As a short soundboard clip, it travels well because the joke needs no long setup: the game reference does the work, and listeners who recognise PvZ immediately understand the obsession being mocked.