The phrase itself is everyday Russian profanity rather than a line traced to one confirmed film or show, combining poshlo vse with a vulgar destination to signal complete rejection. Short clips of it circulated on Russian speaking social media and soundboards as a reaction meme, then spread into gaming and edit communities where the language barrier matters less than the tone. It now sits alongside bruh and other one line reactions, used when words fail and an angry, funny outburst says everything faster.