平胸坦坦荡荡走天下
[píng xiōng tăn tăn dàng dàng zŏu tiān xià]
Literally means 'small-chested, walking the world with pride'. This nickname reflects confidence in oneself, regardless of physical attributes. It emphasizes self-respect and indifference to conventional beauty standards, advocating a positive outlook on life despite societal expectations.