倾国倾城倾你妹闭月羞花羞你妈
[qīng guó qīng chéng qīng nĭ mèi bì yuè xiū huā xiū nĭ mā]
In this exaggerated expression, 'Dazzling as Beauty, Dazzling Your Sibling and Embarrassing Your Mother', it's a mix of traditional poetic expressions of extreme beauty and humorous exaggeration.