学霸学霸不学也罢学渣学渣学了也渣
[xué bà xué bà bù xué yĕ bà xué zhā xué zhā xué le yĕ zhā]
'Straight A Student... Not studying wouldn't matter. Bottom Feeder Studying... Still Bottom Feeder.' This reflects self-deprecation, mocking one's own lack of progress despite efforts in learning. Or can just be saying both geniuses and slow learners can do what suits themselves, study or not, there is no strict definition of either category.