Vai te embora, xau is a short Portuguese dismissal phrase that circulates online as a punchy reaction sound, especially in Brazilian meme and social video culture. Its appeal comes from its directness: vai means go, te embora means get out of here, and xau is an informal bye, so the whole line works as a complete goodbye in under two seconds. Creators reuse it because it needs no translation to land, and its rhythm makes it easy to drop over exits, rejections and failed attempts.