The phrase combines babushka, the Russian word for grandmother, with a very common Russian profanity used to tell someone to get lost. Clips with this wording circulate on Russian language soundboards and in short meme edits, where the contrast between a sweet elderly stereotype and an aggressive swear creates the joke. It has no confirmed single film, show or viral video source, so its popularity comes from reuse as a reaction sound in chats, streams and compilations rather than from one original scene.
About this sound
A short Russian voice clip of a babushka angrily shouting poshla ty nakh, used as a blunt rude reaction and meme sound effect for arguments and jokes.
This is a brief Russian voice clip built around an angry babushka shouting the profane dismissal poshla ty nakh, roughly meaning go away in the rudest possible way. The delivery is sharp, loud and fed up, with the grandmotherly voice making the insult sound even funnier and more unexpected. There is no music or background build up, just the line landing immediately. Viewers hear it as an instant shutdown, the kind of over the top reaction used when a character, friend or comment has gone too far and deserves a dramatic send off.