哥是谁牛逼re姐是谁有范er
[gē shì shéi niú bī re jiĕ shì shéi yŏu fàn er]
It translates to something like 'Who’s cool? Brother is cool re, who's stylish? Sister is trendy er.' It shows pride or arrogance towards oneself and family members. Repeating the 're' and 'er' might be an attempt for playful exaggeration or emphasis.