不经历人渣哪能穿得婚纱
[bù jīng lì rén zhā nă néng chuān dé hūn shā]
The literal translation is 'without going through scum how could one wear a wedding dress'. This nickname indicates that in order to finally achieve a happy ending, such as getting married and entering into love and life that you want, you have to endure all kinds of hardships including encounters with negative people or experiences along the way, believing that those difficult experiences are the foundation for growing into your happiest self.