Ta gueule is a very informal French expression used to tell someone to shut up, while tati is a familiar word for an auntie, which gives the whole line its scolding at home feeling. The recording has no widely documented single source and circulates mainly as a standalone meme clip on soundboards and in short edits. Its spread comes from how portable the joke is: five seconds is enough for setup and punchline, so creators can drop it into unrelated scenes and still get an immediate reaction from viewers who know the phrase.