柠檬不萌乐橙不乖
[níng méng bù méng lè chéng bù guāi]
'Unadorable Lemon and Naughtiless Orange', using fruits in playful descriptions, conveys lighthearted amusement or irony. Lemons often symbolize something sour yet refreshing, while '不萌' (not lovely) might indicate something unexpectedly delightful but unconventional, similar reasoning applied for orange with added playfulness.