阿狸的乖巧我学不来
[ā lí de guāi qiăo wŏ xué bù lái]
'Ah Li (a kind of fox sprite) compliance is beyond me' acknowledges that someone (represented by Ah Li - which could also refer to some characters from literature or animation) is gentle, well-mannered and submissive, but the owner of the nickname is admitting they cannot be like this, showing a sort of nonconformist trait or rebellious nature.