翻手为云，覆手为雨

翻手为云，覆手为雨

Literally means:

produce clouds with one turn of the hand and rain with the other

Actually means:

manipulate one's power

Both 翻手 and 覆手 refer to turning one's hand; 为 refers to "do" or "make".

This phrase metaphorically means that one is capricious or whimsical in words or actions, or that he is skillful in playing tricks or using strategies. It often indicates that those with power and influence enjoy manipulating their power for personal ends. Derogatory.

翻手、覆手，都指翻转手掌。为，做。

翻手为云，覆手为雨，比喻言行反复无常，一会儿这样，一会儿那样。也比喻很会玩弄手段。多指有一定权力的人喜欢耍手段。具有贬义色彩。