大笨蛋跌跌撞撞到永远小傻瓜吵吵闹闹一辈子
[dà bèn dàn diē diē zhuàng zhuàng dào yŏng yuăn xiăo shă guā chăo chăo nào nào yī bèi zi]
This translates to 'Big fool stumbles all the way forever; small fool bickers noisily throughout life.' It uses endearing terms 'big fool' and 'small fool' to depict two people with flaws going through ups and downs together while constantly quarreling, emphasizing lasting companionship amidst imperfections.