可能是你喜欢苗条而我性胖
[kĕ néng shì nĭ xĭ huān miáo tiáo ér wŏ xìng pàng]
Perhaps you love being slim while I am by nature chubby. The individual accepts body diversity with a sense of humor. This netname also contains a bit self-irony or satire over societal standards.