长发及腰肯定头屑不少
[zhăng fā jí yāo kĕn dìng tóu xiè bù shăo]
'Long hair reaching the waist must have lots of dandruff' humorously suggests a lighthearted and candid comment on oneself or others, hinting at how maintaining long hair comes with its own challenges and quirks, adding a whimsical note to personal traits.