同桌的你小傻瓜
[tóng zhuō de nĭ xiăo shă guā]
Meaning 'My classmate next to me is a little fool', likely referring endearingly (or teasingly) to a friend with whom the user had close moments during school days. Here, '同桌的你' means 'classmate who sits with you', and '小傻瓜' literally translates to 'little fool' but could carry affectionate nuance.