我不是胖只是瘦得不明显
[wŏ bù shì pàng zhĭ shì shòu dé bù míng xiăn]
This username translates to 'I'm not fat, I'm just not obviously thin.' It reflects a self-deprecating and humorous way to address body image. The user humorously denies being overweight but also admits that they are not significantly underweight.