俺们是不锈钢娘儿
[ăn men shì bù xiù gāng niáng ér]
An unconventional and humorous way to say "We're tough/stainless daughters." It suggests resilience, akin to stainless steel. This playful twist combines the ruggedness of metal with feminine attributes, possibly reflecting a spirit of independence and durability amongst friends or peers referred to as 'daughters' here.