柠檬不宁芒果不芒
[níng méng bù níng máng guŏ bù máng]
Translates to 'lemon is not quiet, mango is not sharp'. Lemons and mangos have distinctive flavors - sourness and sweetness respectively, and this username humorously indicates these fruits are behaving unnaturally by not exhibiting their expected traits. More broadly, it may suggest feeling out of sorts or things going awry despite expecting normalcy.