吐槽别人给你画饼，也可以试试这个表达……

　　pie in the sky

　　空中楼阁，不大可能实现的允诺

　　释义：

　　something that you hope will happen but is very unlikely to happen 渺茫的希望;不大可能实现的计划/允诺

　　例句：

　　Their plans to set up their own business are just pie in the sky.

　　The true regeneration of devastated Docklands seemed like pie in the sky.