老娘我就是数学不好怎么了
[lăo niáng wŏ jiù shì shù xué bù hăo zĕn me le]
This username expresses a somewhat defiant attitude towards someone's struggle with math. The phrase '老娘' is informal and colloquial, used here to express self-assuredness or stubbornness, suggesting the user accepts and is unbothered by their difficulties in math.