数学不好的好娘们儿英语不好的纯爷们儿
[shù xué bù hăo de hăo niáng men ér yīng yŭ bù hăo de chún yé men ér]
It means 'a nice girl/good gal bad at math, a real man/brave lad terrible at English'. It’s a lighthearted way to admit weaknesses in typically stereotyped male or female fields while retaining respect and masculinity/femininity.