遗笑大方

Explanation: Refers to experts laughed. 　　Source: Phrase "Zhuangzi Qiu water," I laughed in a long and generous family. "Ming Di shore scattered people," Jen pear "Diba Hui Younger kid, dare in front of the old man presumptuous. Condition was non-seven-step, leaving a moment too generous laugh." 　　Examples: Talented women, like dealing with affairs of state, army, division, less is more strange, would not ~. ★ Gui opera "Liang Hongyu" Race 9