奈何桥上唱咆哮孟婆面前唱中毒
[nài hé qiáo shàng chàng páo xiào mèng pó miàn qián chàng zhōng dú]
It literally means 'Singing roar at the Naihe Bridge and singing addiction before the spirit Matriarch Meng (Meng Po)'. In Chinese mythology, Naihe Bridge is crossed by departed souls and Matriarch Meng serves the dead tea of oblivion. This indicates a rebellious attitude, possibly mocking tradition or showing intense emotions in face of fate.