The phrase is common Russian profanity used in everyday speech to question someone's sanity after a stupid or outrageous act, roughly equivalent to saying have you lost your mind. As a standalone clip it circulates on Russian language soundboards and in short video edits, where the transliteration ty ebanulsya helps non Cyrillic users search for it. Its popularity comes from its brevity and recognisable swearing tone, which works even without context. It remains a go to reaction for creators who want instant disbelief without explaining the joke or setting up a longer scene.