A Minecraft Movie’ has sparked a new trend in cinemas, inspiring audiences to cheer along to Jack Black’s Steve—here’s the ‘Chicken Jockey’ meme, explained.

Over the weekend, A Minecraft Movie hit theaters nationwide. The adaption of Mojang’s uberpopular crafting and survival game has already made over $300 million worldwide. And it’s kickstarted some chaotic scenes at theaters thanks to single line of dialogue.

While fans have embraced the absurd performances from Jack Black and Jason Momoa, it's a split-second cameo featuring a baby zombie riding a chicken that's sending teen audiences into absolute chaos. The Chicken Jockey, a rare and obscure Minecraft mob, has become the unlikely center of a viral eruption.