打开天窗说亮话

打开天窗说亮话

Literally means:

open the skylight and speak

Actually means:

speak frankly; be frank and put our cards on the table

天窗 refers to the window set in the roof in order to improve the lighting or ventilation of the room; Liang Hua refers to explicit and honest words.

The phrase means speaking directly and clearly what one wants to say without holding back or conceal anything.

天窗，为增加室内的亮光和有利于通风而设在屋顶上的窗子；亮话，明白实在的话。

比喻把要说的话或事情直接而明白地说出来，不保留，不隐瞒。