怪瘦难瘦怪难瘦怪胖难胖难怪胖
[guài shòu nán shòu guài nán shòu guài pàng nán pàng nán guài pàng]
A humorous play on words, highlighting difficulties in gaining weight or losing weight, implying how frustrating this health situation is or mocking current body type without success of changing it.