萌哒哒的奇葩花静悄悄的开
[méng dā dā de qí pā huā jìng qiăo qiăo de kāi]
The nickname describes someone or something as peculiar yet cute ('萌' meaning cute and '奇葩' referring to something strange), blooming silently like a unique flower that blossoms quietly without attention or disturbance.