你姓薄我姓凉
[nĭ xìng bó wŏ xìng liáng]
'你姓薄我姓凉' (Ni Xing Bo Wo Xing Liang) employs a pun on Chinese surnames to metaphorically describe a cold or distant relationship between two people. 'Bo' can also mean shallow or slight, and 'Liang' cool or indifferent.